David A. Etzioni, M.D.

  1. Colon and Rectal Surgeon
  2. General Surgeon
  1. Zhang C, Shariq O, Bews K, Poruk K, Mrdutt MM, Foster T, Etzioni DA, Habermann EB, Thiels C. Outpatient surgery benchmarks and practice variation patterns: case controlled study. Int J Surg. 2024 Oct 1; 110 (10):6297-6305 Epub 2024 Oct 01
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  2. Zhang C, Bews K, Klemen ND, Etzioni D, Habermann EB, Thiels C. Thrombotic and Hemorrhagic Outcomes After Elective Surgery in Preoperatively Anticoagulated Patients. Mayo Clin Proc. 2024 Jul; 99 (7):1038-1045
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  3. Anderson ST, Mount JR, Hintze BC, Hogan JS, Jorge IA, Etzioni DA, Han GR, Brady JT. The Decline of Small Practice in Colorectal Surgery: Practice Consolidation From 2015-2022. J Surg Res. 2024 Jun; 298:364-370 Epub 2024 Apr 25
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  4. Lim PW, Stucky CH, Wasif N, Etzioni DA, Harold KL, Madura JA 2nd, Ven Fong Z. Bariatric Surgery and Longitudinal Cancer Risk: A Review. JAMA Surg. 2024 Mar 1; 159 (3):331-338
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  5. Hammond JB, Madura GM, Chang YH, Lim ES, Habermann E, Cima R, Colibaseanu D, Siebeneck ET, Etzioni DA. The influence of operating room temperature and humidity on surgical site infection: A multisite ACS-NSQIP analysis. Am J Surg. 2023 Dec; 226 (6):840-844 Epub 2023 July 03
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  6. Martins RS, Chang YH, Etzioni D, Stucky CC, Cronin P, Wasif N. Understanding Variation in In-hospital Mortality After Major Surgery in the United States. Ann Surg. 2023 Dec 1; 278 (6):865-872 Epub 2023 Mar 30
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  7. Durant AM, Whitney MA, Chang YH, Larson MA, Shah PH, Lyon TD, Humphreys MR, Etzioni DA, Tyson MD 2nd. Surgical Site Infections in Open and Laparoscopic Operations in Rooms With Open-floor Drainage Systems. Urol Pract. 2023 Nov; 10 (6):622-629 Epub 2023 July 27
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  8. Zhang C, Calderon E, Chang YH, Han GR, Kelley SR, Merchea A, Brady JT, Young-Fadok TM, Etzioni DA, Mishra N. Short and long-term oncologic outcomes of patients with colon cancer of the splenic flexure. Am J Surg. 2023 Jul; 226 (1):77-82 Epub 2023 Feb 07
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  9. He S, Lu P, Etzioni D, Young-Fadok T, Kelley SR, Merchea A, Mishra N. Management of Acute Diverticulitis in Immunocompromised Patients-The Mayo Clinic Experience. Dis Colon Rectum. 2023 Mar 1; 66 (3):434-442 Epub 2022 July 15
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  10. Shariq OA, Bews KA, Etzioni DA, Kendrick ML, Habermann EB, Thiels CA. Performance of General Surgical Procedures in Outpatient Settings Before and After Onset of the COVID-19 Pandemic. JAMA Netw Open. 2023 Mar 1; 6 (3):e231198 Epub 2023 Mar 01
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  11. Jogerst KM, Chang YH, Etzioni DA, Mathur AK, Habermann EB, Wasif N. Identifying the Optimal case-volume threshold for pancreatectomy in contemporary practice. Am J Surg. 2022 Feb; 223 (2):318-324 Epub 2021 Mar 19
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  12. Grass F, Storlie CB, Mathis KL, Bergquist JR, Asai S, Boughey JC, Habermann EB, Etzioni DA, Cima RR. Challenges of Modeling Outcomes for Surgical Infections: A Word of Caution. Surg Infect (Larchmt). 2021 Jun; 22 (5):523-531 Epub 2020 Oct 20
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  13. Schwartz AJ, Yost KJ, Bozic KJ, Etzioni DA, Raghu TS, Kanat IE. What Is The Value Of A Star When Choosing A Provider For Total Joint Replacement? A Discrete Choice Experiment. Health Aff (Millwood). 2021 Jan; 40 (1):138-145
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  14. Etzioni DA, Lessow C, Bordeianou LG, Kunitake H, Deery SE, Carchman E, Papageorge CM, Fuhrman G, Seiler RL, Ogilvie J, Habermann EB, Chang YH, Money SR. Concordance Between Registry and Administrative Data in the Determination of Comorbidity: A Multi-institutional Study. Ann Surg. 2020 Dec; 272 (6):1006-1011
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  15. Schwartz AJ, Trask DJ, Bews KA, Hanson KT, Etzioni DA, Habermann EB. Hip Disarticulation for Periprosthetic Joint Infection: Frequency, Outcome, and Risk Factors. J Arthroplasty. 2020 Nov; 35 (11):3269-3273.e3 Epub 2020 June 15
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  16. Schwartz AJ, Clarke HD, Spangehl MJ, Bingham JS, Etzioni DA, Neville MR. Can a Convolutional Neural Network Classify Knee Osteoarthritis on Plain Radiographs as Accurately as Fellowship-Trained Knee Arthroplasty Surgeons? J Arthroplasty. 2020 Sep; 35 (9):2423-2428 Epub 2020 Apr 25
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  17. Rockov ZA, Etzioni DA, Schwartz AJ. The July Effect for Total Joint Arthroplasty Procedures. Orthopedics. 2020 Aug 19; 1-6 [Epub ahead of print]
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  18. Wasif N, Etzioni DA, Habermann E, Mathur A, Chang YH. Correlation of Proposed Surgical Volume Standards for Complex Cancer Surgery with Hospital Mortality. J Am Coll Surg. 2020 Jul; 231 (1):45-52.e4 Epub 2020 Apr 23
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  19. Trask D, Etzioni D, Schwartz AJ. Aversion to Total Joint Arthroplasty: Functional Scores Predict Patient Preferences. Orthopedics. 2020 May 1; 43 (3):147-153 Epub 2020 Mar 20
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  20. Ali-Mucheru MN, Seville MT, Miller V, Sampathkumar P, Etzioni DA. Postoperative Surgical Site Infections: Understanding the Discordance Between Surveillance Systems. Ann Surg. 2020 Jan; 271 (1):94-99
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  21. Schwartz AJ, Clarke HD, Sassoon A, Neville MR, Etzioni DA. The Clinical and Financial Consequences of the Centers for Medicare and Medicaid Services' Two-Midnight Rule in Total Joint Arthroplasty. J Arthroplasty. 2020 Jan; 35 (1):1-6.e1 Epub 2019 Aug 30
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  22. Faraj K, Chang YH, Rose KM, Habermann EB, Etzioni DA, Blodgett G, Castle EP, Humphreys MR, Tyson Ii MD. Single-dose perioperative mitomycin-C versus thiotepa for low-grade noninvasive bladder cancer. Can J Urol. 2019 Oct; 26 (5):9922-9930
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  23. Wasif N, Etzioni D, Habermann EB, Mathur A, Chang YH. Contemporary Improvements in Postoperative Mortality After Major Cancer Surgery are Associated with Weakening of the Volume-Outcome Association. Ann Surg Oncol. 2019 Aug; 26 (8):2348-2356 Epub 2019 May 07
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  24. Faraj K, Chang YH, Neville MR, Blodgett G, Etzioni DA, Habermann EB, Andrews PE, Castle EP, Humphreys MR, Tyson MD. Robotic vs. open cystectomy: How length-of-stay differences relate conditionally to age. Urol Oncol. 2019 Jun; 37 (6):354.e1-354.e8 Epub 2019 Feb 13
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  25. Arthur JR, Etzioni D, Schwartz AJ. Characterizing extremely negative reviews of total joint arthroplasty practices and surgeons on yelp.com. Arthroplast Today. 2019 Jun; 5 (2):216-220 Epub 2019 Apr 10
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  26. Mathur AK, Chang YH, Steidley DE, Heilman RL, Wasif N, Etzioni D, Reddy KS, Moss AA. Factors associated with adverse outcomes from cardiovascular events in the kidney transplant population: an analysis of national discharge data, hospital characteristics, and process measures. BMC Nephrol. 2019 May 28; 20 (1):190
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  27. Schwartz AJ, Chang YH, Bozic KJ, Etzioni DA. Evidence of Pent-Up Demand for Total Hip and Total Knee Arthroplasty at Age 65. J Arthroplasty. 2019 Feb; 34 (2):194-200 Epub 2018 Oct 04
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  28. Schwartz A, Bozic K, Etzioni D. Value-Based Orthopaedic Surgery: A Framework for Understanding the Literature. J Am Acad Orthoped Surg (in press). 2019.
  29. Etzioni DA. Public Reporting of Surgical Outcomes. Seminars in Colon and Rectal Surgery (in press). 2019.
  30. Schwartz AJ, Bozic KJ, Etzioni DA. Value-based Total Hip and Knee Arthroplasty: A Framework for Understanding the Literature. J Am Acad Orthop Surg. 2019 Jan 1; 27 (1):1-11
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  31. Etzioni DA. Introduction to Big Data in Colorectal Surgery. Clin Colon Rectal Surg. 2019 Jan; 32 (1):5-6 Epub 2019 Jan 08
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  32. Wasif N, Etzioni DA. Regionalization of Complex Cancer Surgery: How, When, and Why? JAMA Netw Open 2018 Nov 2; 1 (7):e184586 Epub 2018 Nov 02
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  33. Wasif N, Etzioni DA, Habermann EB, Mathur A, Pockaj BA, Gray RJ, Chang YH. Does Improved Mortality at Low- and Medium-Volume Hospitals Lead to Attenuation of the Volume to Outcomes Relationship for Major Visceral Surgery? J Am Coll Surg. 2018 Jul; 227 (1):85-93.e9 Epub 2018 Mar 07
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  34. Weidner TK, Kidwell JT, Etzioni DA, Sangaralingham LR, Van Houten HK, Asante D, Jeffery MM, Shah N, Wasif N. Factors Associated with Emergency Department Utilization and Admission in Patients with Colorectal Cancer. J Gastrointest Surg. 2018 May; 22 (5):913-920 Epub 2018 Feb 12
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  35. Wasif N, Etzioni D, Habermann EB, Mathur A, Pockaj BA, Gray RJ, Chang YH. Racial and Socioeconomic Differences in the Use of High-Volume Commission on Cancer-Accredited Hospitals for Cancer Surgery in the United States. Ann Surg Oncol. 2018 May; 25 (5):1116-1125 Epub 2018 Feb 15
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  36. Etzioni DA, Lessow C, Bordeianou LG, Kunitake H, Deery SE, Carchman E, Papageorge CM, Fuhrman G, Seiler RL, Ogilvie J, Habermann EB, Chang YH, Money SR. Venous Thromboembolism after Inpatient Surgery in Administrative Data vs NSQIP: A Multi-Institutional Study. J Am Coll Surg. 2018 May; 226 (5):796-803 Epub 2018 Feb 14
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  37. Orenstein R, King K, Patron RL, DiBaise JK, Etzioni D. Mini-Fecal Microbiota Transplantation for Treatment of Clostridium difficile Proctitis Following Total Colectomy. Clin Infect Dis. 2018 Jan 6; 66 (2):299-300
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  38. Etzioni DA, Lessow CL, Lucas HD, Merchea A, Madura JA, Mahabir R, Mishra N, Wasif N, Mathur AK, Chang YH, Cima RR, Habermann EB. Infectious Surgical Complications are Not Dichotomous: Characterizing Discordance Between Administrative Data and Registry Data. Ann Surg. 2018 Jan; 267 (1):81-87
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  39. Etzioni DA. Transparency and the outcomes conversation. J Surg Res 2018 Jan; 221:320-321 Epub 2017 Oct 13
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  40. Etzioni DA, Lessow C, Bordeianou LG, Kunitake H, Deery SE, Carchman E, Papageorge CM, Fuhrman G, Seiler RL, Ogilvie J, Habermann EB, Chang YH, Money SR. Postoperative Myocardial Infarction in Administrative Data vs Clinical Registry: A Multi-Institutional Study. J Am Coll Surg. 2018 Jan; 226 (1):14-21 Epub 2017 Oct 10
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  41. Osborne NH, Etzioni DA. Does Participation in the ACS-NSQIP Improve Outcomes? Ann Surg 2017 Aug; 266 (2):e32-e33
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  42. Mathur AK, Chang YH, Steidley DE, Heilman R, Khurmi N, Wasif N, Etzioni D, Moss AA. Patterns of Care and Outcomes in Cardiovascular Disease After Kidney Transplantation in the United States. Transplant Direct. 2017 Feb; 3 (2):e126 Epub 2017 Jan 16
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  43. Wasif N, Chang YH, Pockaj BA, Gray RJ, Mathur A, Etzioni D. Association of Distance Traveled for Surgery with Short- and Long-Term Cancer Outcomes. Ann Surg Oncol. 2016 Oct; 23 (11):3444-3452 Epub 2016 Apr 28
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  44. Murphy J, Kalkbrenner KA, Blas JV, Pemberton JH, Landmann RG, Young-Fadok TM, Etzioni DA. What is the likelihood of colorectal cancer when surgery for ulcerative-colitis-associated dysplasia is deferred? Colorectal Dis. 2016 Jul; 18 (7):703-9
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  45. Atkinson SJ, Daly MC, Midura EF, Etzioni DA, Abbott DE, Shah SA, Davis BR, Paquette IM. The effect of hospital volume on resection margins in rectal cancer surgery. J Surg Res. 2016 Jul; 204 (1):22-8 Epub 2016 Apr 23
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  46. Bergquist JR, Thiels CA, Etzioni DA, Habermann EB, Cima RR. Failure of Colorectal Surgical Site Infection Predictive Models Applied to an Independent Dataset: Do They Add Value or Just Confusion? J Am Coll Surg. 2016 Apr; 222 (4):431-8 Epub 2016 Jan 14
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  47. Etzioni DA. Databases: Examining strengths and weakness of currently available data Seminars in Colon and Rectal Surgery. 2016; 27: (2)70-3.
  48. Etzioni DA, Wasif N, Mathur AK, Habermann EB, Cima RR, Chang YH. Impact of Unaccounted Risk Factors on the Interpretation of Surgical Outcomes. J Am Coll Surg. 2015 Oct; 221 (4):821-7 Epub 2015 June 29
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  49. Wasif N, Etzioni D, Haddad D, Gray RJ, Bagaria SP, Pockaj BA. Staging studies for cutaneous melanoma in the United States: a population-based analysis. Ann Surg Oncol. 2015 Apr; 22 (4):1366-70 Epub 2014 Dec 04
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  50. Etzioni DA, Wasif N, Dueck AC, Cima RR, Hohmann SF, Naessens JM, Mathur AK, Habermann EB. Association of hospital participation in a surgical outcomes monitoring program with inpatient complications and mortality. JAMA. 2015 Feb 3; 313 (5):505-11
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  51. Etzioni DA, Young-Fadok TM, Cima RR, Wasif N, Madoff RD, Naessens JM, Habermann EB. Patient survival after surgical treatment of rectal cancer: impact of surgeon and hospital characteristics. Cancer. 2014 Aug 15; 120 (16):2472-81 Epub 2014 May 06
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  52. Murphy J, Kalkbrenner KA, Pemberton JH, Landmann RG, Heppell JP, Young-Fadok TM, Etzioni DA. Dysplasia in ulcerative colitis as a predictor of unsuspected synchronous colorectal cancer. Dis Colon Rectum. 2014 Aug; 57(8):993-8.
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  53. Abbas MA, Cannom RR, Chiu VY, Burchette RJ, Radner GW, Haigh PI, Etzioni DA. Triage of patients with acute diverticulitis: are some inpatients candidates for outpatient treatment? Colorectal Dis. 2013 Apr; 15(4):451-7.
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  54. Tyson MD, Andrews PE, Etzioni DA, Ferrigni RG, Humphreys MR, Swanson SK, Castle EK. Marital status and prostate cancer outcomes. Can J Urol. 2013 Apr; 20 (2):6702-6
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  55. Etzioni DA, Fowl RJ, Wasif N, Donohue JH, Cima RR. Distance bias and surgical outcomes. Med Care. 2013 Mar; 51 (3):238-44
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  56. Moloo H, Etzioni DA. Intraoperative adjuncts in colorectal surgery. Surg Clin North Am. 2013 Feb; 93(1):33-43. Epub 2012 Oct 18.
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  57. Satiani B, Etzioni DA, Williams TE. Trends in the general surgery workforce. Semin. Colon Rectal Surg. 2013; 24(4):180-6.
  58. Bertelson NL, Kalkbrenner KA, Merchea A, Dozois EJ, Landmann RG, De Petris G, Young-Fadok TM, Etzioni DA. Colectomy for endoscopically unresectable polyps: how often is it cancer? Dis Colon Rectum. 2012 Nov; 55 (11):1111-6
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  59. McGhan LJ, Etzioni DA, Gray RJ, Pockaj BA, Coan KE, Wasif N. Underuse of curative surgery for early stage upper gastrointestinal cancers in the United States. J Surg Res. 2012 Sep; 177 (1):55-62 Epub 2012 Mar 30
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  60. Tyson MD, Etzioni DA, Wisenbaugh ES, Andrews PE, Humphreys MR, Ferrigni RG, Swanson SK, Castle EP. Anatomic site-specific disparities in survival outcomes for penile squamous cell carcinoma. Urology. 2012 Apr; 79 (4):804-8 Epub 2012 Mar 03
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  61. Etzioni DA. Quality of care in surgery: the health services research perspective. Surgery. 2011 Nov; 150(5):881-6.
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  62. Baca B, Beart RW, Etzioni DA. Surveillance after colorectal cancer resection: a systematic review. Dis Colon Rectum. 2011 Aug; 54(8):1036-48.
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  63. Etzioni DA, Finlayson SR, Ricketts TC, Lynge DC, Dimick JB. Getting the science right on the surgeon workforce issue. Arch Surg. 2011 Apr; 146(4):381-4.
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  64. Wasif N, Etzioni D, Maggard MA, Tomlinson JS, Ko CY. Trends, patterns, and outcomes in the management of malignant colonic polyps in the general population of the United States. Cancer. 2011 Mar 1; 117(5):931-7. Epub 2010 Oct 19.
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  65. Fraser JD, Etzioni DA. Evaluation and nonoperative management of colonic diverticular disease. Semin. Colon Rectal Surg. 2011; 22(3):154-6.
  66. Etzioni DA. Timeliness of care. Semin. Colon Rectal Surg. 2011; 22(4):222-5.
  67. Etzioni DA. Current management of anal fissure. Semin. Colon Rectal Surg. 2011; 22(1):2-8.
  68. Hwang SS, Cannom RR, Abbas MA, Etzioni D. Diverticulitis in transplant patients and patients on chronic corticosteroid therapy: a systematic review. Dis Colon Rectum. 2010 Dec; 53(12):1699-707.
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  69. Lin MY, Liu WY, Aboulian A, Huntley JB, Etzioni DA, Petrie BA. Characteristics of colorectal cancer among Asian Americans. Am Surg. 2010 Oct; 76(10):1154-7.
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  70. Etzioni DA, Chiu VY, Cannom RR, Burchette RJ, Haigh PI, Abbas MA. Outpatient treatment of acute diverticulitis: rates and predictors of failure. Dis Colon Rectum. 2010 Jun; 53(6):861-5.
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  71. Etzioni DA, Cannom RR, Madoff RD, Ault GT, Beart RW. Colorectal procedures: what proportion is performed by American board of colon and rectal surgery-certified surgeons? Dis Colon Rectum. 2010 May; 53(5):713-20.
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  72. Rowe VL, Weaver FA, Lane JS, Etzioni DA. Racial and ethnic differences in patterns of treatment for acute peripheral arterial disease in the United States, 1998-2006. J Vasc Surg. 2010 Apr; 51(4 Suppl):21S-26S. Epub 2010 Jan 15.
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  73. Maeda T, Cannom RR, Beart RW, Etzioni DA. Decision model of segmental compared with total abdominal colectomy for colon cancer in hereditary nonpolyposis colorectal cancer. J Clin Oncol. 2010 Mar 1; 28(7):1175-80. Epub 2010 Feb 01.
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  74. Dudukgian H, Sie E, Gonzalez-Ruiz C, Etzioni DA, Kaiser AM. C. difficile colitis--predictors of fatal outcome. J Gastrointest Surg. 2010 Feb; 14(2):315-22.
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  75. Etzioni DA, Cannom RR, Ault GT, Beart RW Jr, Kaiser AM. Diverticulitis in California from 1995 to 2006: increased rates of treatment for younger patients. Am Surg. 2009 Oct; 75(10):981-5.
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  76. Cannom RR, Kaiser AM, Ault GT, Beart RW Jr, Etzioni DA. Inflammatory bowel disease in the United States from 1998 to 2005: has infliximab affected surgical rates? Am Surg. 2009 Oct; 75(10):976-80.
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  77. Etzioni DA, Beart RW Jr, Madoff RD, Ault GT. Impact of the aging population on the demand for colorectal procedures. Dis Colon Rectum. 2009 Apr; 52(4):583-90; discussion 590-1.
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  78. Rowe VL, Lee W, Weaver FA, Etzioni D. Patterns of treatment for peripheral arterial disease in the United States: 1996-2005. J Vasc Surg. 2009 Apr; 49(4):910-7.
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  79. Etzioni DA, Mack TM, Beart RW Jr, Kaiser AM. Diverticulitis in the United States: 1998-2005: changing patterns of disease and treatment. Ann Surg. 2009 Feb; 249(2):210-7.
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  80. Etzioni DA, El-Khoueiry AB, Beart RW Jr. Rates and predictors of chemotherapy use for stage III colon cancer: a systematic review. Cancer. 2008 Dec 15; 113(12):3279-89.
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  81. Christoforidis D, Etzioni DA, Goldberg SM, Madoff RD, Mellgren A. Treatment of complex anal fistulas with the collagen fistula plug. Dis Colon Rectum. 2008 Oct; 51(10):1482-7. Epub 2008 Jun 03.
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  82. Yano EM, Soban LM, Parkerton PH, Etzioni DA. Primary care practice organization influences colorectal cancer screening performance. Health Serv Res. 2007 Jun; 42(3 Pt 1):1130-49.
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  83. Ponce NA, Chawla N, Babey SH, Gatchell MS, Etzioni DA, Spencer BA, Brown ER, Breen N. Is there a language divide in pap test use? Med Care. 2006 Nov; 44(11):998-1004.
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  84. Etzioni DA, Yano EM, Rubenstein LV, Lee ML, Ko CY, Brook RH, Parkerton PH, Asch SM. Measuring the quality of colorectal cancer screening: the importance of follow-up. Dis Colon Rectum. 2006 Jul; 49(7):1002-10.
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  85. Heinzerling KG, Etzioni DA, Hurley B, Holtom P, Bluthenthal RN, Asch SM. Hospital utilization for injection drug use-related soft tissue infections in urban versus rural counties in California. J Urban Health. 2006 Mar; 83(2):176-81.
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  86. Spencer BA, Babey SH, Etzioni DA, Ponce NA, Brown ER, Yu H, Chawla N, Litwin MS. A population-based survey of prostate-specific antigen testing among California men at higher risk for prostate carcinoma. Cancer. 2006 Feb 15; 106(4):765-74.
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  87. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Ko CY. Are survival rates different for young and older patients with rectal cancer? Dis Colon Rectum. 2004 Dec; 47(12):2064-9.
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  88. Etzioni DA, Ponce NA, Babey SH, Spencer BA, Brown ER, Ko CY, Chawla N, Breen N, Klabunde CN. A population-based study of colorectal cancer test use: results from the 2001 California Health Interview Survey. Cancer. 2004 Dec 1; 101(11):2523-32.
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  89. O'connell JB, Maggard MA, Liu JH, Etzioni DA, Ko CY. A report card on outcomes for surgically treated gastrointestinal cancers: are we improving? J Surg Res. 2004 Oct; 121(2):214-21.
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  90. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Livingston EH, Ko CY. Do young colon cancer patients have worse outcomes? World J Surg. 2004 Jun; 28(6):558-62.
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  91. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Ko CY. The increasing workload of general surgery. Arch Surg. 2004 Apr; 139(4):423-8.
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  92. Etzioni DA, Liu JH, O'Connell JB, Maggard MA, Ko CY. Elderly patients in surgical workloads: a population-based analysis. Am Surg. 2003 Nov; 69(11):961-5.
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  93. Etzioni DA, Liu JH, Maggard MA, O'Connell JB, Ko CY. Workload projections for surgical oncology: will we need more surgeons? Ann Surg Oncol. 2003 Nov; 10(9):1112-7.
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  94. Zingmond D, Maggard M, O'Connell J, Liu J, Etzioni D, Ko C. What predicts serious complications in colorectal cancer resection? Am Surg. 2003 Nov; 69(11):969-74.
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  95. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Livingston EH, Ko CY. Rates of colon and rectal cancers are increasing in young adults. Am Surg. 2003 Oct; 69(10):866-72.
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  96. Liu JH, Zingmond D, Etzioni DA, O'Connell JB, Maggard MA, Livingston EH, Liu CD, Ko CY. Characterizing the performance and outcomes of obesity surgery in California. Am Surg. 2003 Oct; 69(10):823-8.
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  97. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Hiyama DT, Ko CY. Inpatient surgery in California: 1990-2000. Arch Surg. 2003 Oct; 138(10):1106-11; discussion 1111-2.
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  98. Babey SH, Ponce NA, Etzioni DA, Spencer BA, Brown ER, Chawla N. Cancer screening in California: racial and ethnic disparities persist. Policy Brief UCLA Cent Health Policy Res. 2003 Sep; (PB2003-4):1-6.
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  99. Maggard MA, O'Connell JB, Liu JH, Etzioni DA, Ko CY. Sample size calculations in surgery: are they done correctly? Surgery. 2003 Aug; 134(2):275-9.
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  100. Etzioni DA, Liu JH, Maggard MA, Ko CY. The aging population and its impact on the surgery workforce. Ann Surg. 2003 Aug; 238(2):170-7.
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  101. Maggard MA, O'Connell JB, Lane KE, Liu JH, Etzioni DA, Ko CY. Do young breast cancer patients have worse outcomes? J Surg Res. 2003 Jul; 113(1):109-13.
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  102. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Ko CY. Using volume criteria: do California hospitals measure up? J Surg Res. 2003 Jul; 113(1):96-101.
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  103. De Ugarte DA, Etzioni DA, Gracia C, Atkinson JB. Robotic surgery and resident training. Surg Endosc. 2003 Jun; 17(6):960-3. Epub 2003 Mar 28.
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  104. Etzioni DA, Liu JH, KO CY. Statistics for outcomes research. Seminars in Colon and Rectal Surgery. 2003 Mar; 14(1):3-11.