Complex sentence: After conducting research for the United States Army from 1965 to 1967, Feigin was a professor of pediatrics at Washington University Feigin took a faculty appointment at the Baylor College of Medicine in 1977 and was president from 1996 to 2003.
Split into simpler sentences: After conducting research for the United States Army from 1965 to 1967, Feigin was a professor of pediatrics at Washington University. He took a faculty appointment at the Baylor College of Medicine in 1977, and was its president from 1996 to 2003.