1 Orthopaedics, Warringal Private Hospital, Heidelberg, Victoria, Australia R.J.Bartlett@bigpond.com.
2 Orthopaedics - Retired, University of Melbourne, Melbourne, Victoria, Australia.
3 Center Sports Trauma Research and Education, Karolinska Institutet, Stockholm, Sweden.
4 Wake Forest Baptist Medical Center, Department of Orthopaedics and Sports Medicine, Wake Forest Institute for Regenerative Medicine, Winston Salem, North Carolina, USA.
5 Orthopedics, University of Berne, Bern, Switzerland.
6 Eastwood Orthopaedic Clinic and Unisports Sports Medicine, Auckland, New Zealand.
7 Orthopaedic Sports Medicine Centre, Rome, Italy.