1. Former Foot Fellow, Hospital for Joint Diseases-Orthopaedic Institute, New York, New York.
2. Rockefeller University, New York.
3. Bronx Lebanon Hospital, New York.
4. Associate Director, Musculoskeletal Research, Hospital for Joint Diseases Orthopaedic Institute, New York.
5. Chief (Emeritus), Foot and Ankle Service, Hospital for Joint Diseases-Orthopaedic Institute, and Professor of Orthopaedic Surgery, Mount Sinai School of Medicine, New York.