1. Assistant professor of Anatomy, Department of Anatomy, Mount Sinai School of Medicine of the City University of New York, New York. To whom requests for reprints should be addressed at; Depattment of Anatomy, Mount Sinai School of Medicine, One Gustave Levy place;New York, NY 10029.
2. Associate Clinical professor of Orthopaedic Surgery, Mount Sinai School of Mediclne; Associate Derector of Orthopaedic Surgery and Attending Orthopaedist, The Orthopaedic Institute of the Hospital for Joint Disease, New York.