1. Professor of Surgery, Harvard Medical School, and Surgeon-in-Chief, The Children's Hospital Medical Center. Dr. Folkman holds a Research Career Development Award 5KO3 CA 28085–02 from the National Cancer Institute
2. Registrar, The Royal Infirmary, Aberdeen, Scotland
3. Instructor in Surgery, Harvard Medical School, and Chief of Surgery, Manchester V.A. Hospital, Manchester, New Hampshire