1. Australian Orthopaedic Association Training Scheme, 45 Janet Street, 2291, Merewether, Sydney, NSW Australia
2. Nuffield Orthopaedic Centre, Oxford UK
3. Ridgway, Harberton Mead, OX3 0DB, Oxford UK
4. The University of Sydney, P.O. Box 5082, Greenwich, 2065, Sydney, NSW Australia