1. Psychiatric Clinic, Criminal Division, Supreme Court,
New York County Psychiatrist, U.S. Veterans Hospitals
2. Psychiatric Division, Bellevue Hospital, New York City, Bellevue Hospital, New York City, Columbia College, Long Island College Hospital, New York University School of Medicine Senior Psychiatrist, Bellevue Hospital, New York City, City College of New York, New York University, College of Physicians and Surgeons, Columbia University