1. University Department of Orthopaedic Surgery and Trauma, Royal Adelaide Hospital, North Terrace, Adelaide, South Australia 5000, Australia.
2. National Centre for HIV Virology Research, Institute of Medical and Veterinary Science, Frome Road, Adelaide, South Australia 5000, Australia.
3. Bone Transplant and Tumour Surgery Unit, Queen Elizabeth Hospital, Woodville Road, Woodville South, South Australia 5011, Australia.