1. Prince of Wales Clinical School, University of NSW; Department of Anaesthesia; Sydney NSW Australia
2. Medical College of Ohio; Department of Radiation Oncology; Toledo Ohio USA
3. Virginia Mason Medical Center; Center for Hyperbaric Medicine; 1100 Ninth Avenue Seattle Washington State USA 98101
4. Prince of Wales Hospital; Department of Radiation Oncology; Barker Street Randwick NSW Australia 2031
5. Chris O'Brien Lifehouse; Radiation Oncology and Medical Services; 119-143 Missenden Road PO Box M33 Missenden Road Camperdown NSW Australia 2050