Simon Flexner, M.D. was a physician, scientist, administrator, and professor of experimental pathology at the University of Pennsylvania . He served as the first director of the Rockefeller Institute for Medical Research and a trustee of the Rockefeller Foundation. He was also a friend and adviser to John D. Rockefeller Jr..
University in Kentuckyview profile
Private research university in Philadelphia, Pennsylvaniaview profile
University in Baltimore, Maryland, United Statesview profile