Mark R. Litzow, M.D.

Trust and timing: How a bone marrow transplant gave a man extra birthdays to celebrate

"I started writing my first book at the age of two. It's gonna be published at the age of four. Not bad for a little kid, huh?" But Dean Weitenhagen isn't a child prodigy with a five-year plan. He is a 70-year-old commercial real estate broker with a new lease on life — and a new "birthday" he celebrates — thanks to a lifesaving stem cell transplant for acute myeloid leukemia. Dean's new birthday, and his…