Charlotte D. Jacobs, M.D. is the Ben and A. Jess Shenson Professor of Medicine (Emerita) at Stanford University. She has served as Senior Associate Dean and as Director of the Clinical Cancer Center, and is the author of Henry Kaplan and the Story of Hodgkin's Disease. Her new book, Jonas Salk: A Life, will be available in May 2015 from Oxford University Press. Find her on Twitter @cdjacobs1.