1. Department of Clinical Pharmacology and Therapeutics, Melbourne, VIC.
2. Monash Medical Centre, Melbourne, VIC.
3. Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC.
4. Austin and Repatriation Medical Centre, Melbourne, VIC.
5. St Vincent's Hospital, Melbourne, VIC.
6. The Alfred Hospital, Melbourne, VIC.
7. Department of Mathematics and Statistics, University of Melbourne, Melbourne, VIC.