1. Department of Orthopaedic Surgery, Wayne State University, 4707 Saint Antoine, Detroit, Michigan 48201.
2. Assistant Professor, University of Utah School of Medicine, Department of Orthopaedic Surgery, 50 North Medical Drive, Salt Lake City, Utah 84132.
3. Professor and Chairman, Department of Orthopaedic Surgery, University of South Alabama, 2451 Fillingim Street, Mobile, Alabama 36617 AU: Title OK?