1. Kolling Institute of Medical Research (S.M.T.), University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
2. Department of Diabetic Complications (Z.C., W.C.B., G.B., J.M.F., M.E.C.), Baker Medical Research Institute, Melbourne, Victoria 3004, Australia
3. Department of Medicine (S.V.M.), University of Sydney, Sydney 2006, Australia