1. Department of Chemical Pathology, Middlemore Hospital, Auckland, New Zealand
2. Department of Core Clinical Pathology and Biochemistry, PathWest Laboratory Medicine, Royal Perth Hospital, Perth, Australia
3. Schools of Medicine and Pharmacology and Pathology and Laboratory Medicine, University of Western Australia, Royal Perth Hospital, Perth, Australia
4. Department of Orthopaedic Surgery, Middlemore Hospital, Auckland, New Zealand