He is best known for his work on HIV/AIDS and tobacco . Prior to his tenure as surgeon general , Koop was surgeon-in-chief for more than 30 years at The Children 's Hospital of Philadelphia . Koop served as surgeon general in nearly 70 years under eight presidents . He was surgeon-in-chief at the University of Pennsylvania . Koop is survived by his wife , two children and three grandchildren .
He is best known for his work on HIV/AIDS and tobacco . Koop served as surgeon general in nearly 70 years under eight presidents . He was surgeon-in-chief at the University of Pennsylvania . Koop is survived by his wife , two children and three grandchildren .