Simon Flexner (1863 - 1946) was a
physician, administrator
?, and professor
? of pathology
? at the
University of Pennsylvania. He was the first director of the [Rockefeller Institute for Medical Research]
? (1901-1935) and a trustee
? of the [Rockefeller Foundation]
?. He was also a friend and advisor to [John D. Rockefeller, Jr]
?.
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