Left to right: Franklin H. Epstein (later William Applebaum Professor of Medicine at Harvard Medical School and Physician-in-Chief, Beth Israel Deaconess Hospital, Boston), Alexander Leaf (later Jackson Professor of Medicine at Harvard Medical School and Physician-in-Chief, Massachusetts General Hospital), and Sheila Sherlock (later Dame Sheila Sherlock and Physician-in-Chief, Royal Free Hospital, London). The face of Leaf’s wife, Barbara, is hidden by Sherlock’s hand.