1. advice columnist for Dance Magazine and consults at the School of American Ballet and the Alvin American Dance Center, New York, New York.
2. Department of Orthopedic Surgery, St Luke's-Roosevelt Hospital Center, New York, New York.
3. Departments of Obstetrics and Gynecology and Medicine, Columbia-Presbyterian Medical Center, New York, New York.
4. Westside Dance Physical Therapy, New York, New York.