| memories of john n. brady: scientist, mentor and friend. | friends and colleagues remember john n. brady, ph.d., chief of the virus tumor biology section of the laboratory of cellular oncology, who died much too young at the age of 57 on april 27, 2009 of colon cancer. john grew up in illinois and received his ph.d. with dr. richard consigli at kansas state university studying the molecular structure of polyomavirus. in 1984 john came to the national institutes of health as a staff fellow in the laboratory of dr. norman salzman, laboratory of biology of ... | 2009 | 19454030 |