1. Department of Medicine, College of Physicians and Surgeons, Columbia University, and the Medical Services of The Presbyterian Hospital and the Francis Delafield Hospital, New York, N. Y.
2. college of Physicians and Surgeons; Department of Medicine and Associate Attending Physician, Department of Medicine and Associate Attending Physician, Francis Delafield Hospital, Columbia University, New York, N. Y.; Investigator, Health Research Council of the City of New York (1-109).
3. College of Physicians and Surgeons; Department of Medicine and Associate Attending Physician, Francis Delafield Hospital, Columbia University, New York, N. Y.
4. Basel, Switzerland; formerly Substitute Intern, Francis Delafieid Hospital, New York, N. Y.