J A H Matheson1, J W Lohn2, P N Antippa2, K MacGill2. 1. Plastic and Reconstructive Surgery Unit and the Department of Surgery, The Royal Melbourne Hospital, Grattan Street, Parkville, VIC 3050, Australia. Electronic address: julia.matheson@mh.org.au. 2. Plastic and Reconstructive Surgery Unit and the Department of Surgery, The Royal Melbourne Hospital, Grattan Street, Parkville, VIC 3050, Australia.