1. Los Angeles, Long Beach, and Manhattan Beach, California
2. University of Southern California, Orthopaedic Foot & Ankle Center, 2300 South Hope St., Suite 700, Los Angeles, California 90007.
3. Department of Orthopaedics, University of Southern California, Los Angeles, California 90033.
4. Long Beach Memorial Hospital, Long Beach, California 90801.
5. Orthopaedic Hospital, Los Angeles, California 90007.
6. Chief, Sports Medicine and Arthroscopy, Harbor-UCLA Medical Center, West Coast Center for Orthopaedic Surgery and Sports Medicine, Manhattan Beach, California 90266.