title: Thank you, Dr. Alfred S. Ketcham - educator, mentor and friend.
authors: Alfred M
authors: AM
authors: Cohen
mesh_terms: D013502:General Surgery / Q000266:history*; D049673:History, 20th Century; D008495:Medical Oncology / Q000266:history; D008611:Mentors / Q000266:history; D014481:United States