1. Department of Clinical Pharmacology & Toxicology; St Vincent's Hospital; Sydney Australia
2. School of Medical Sciences; University of New South Wales; Sydney Australia
3. School of Pharmacy; University of Otago; Dunedin New Zealand
4. Department of Rheumatology; St George Hospital; Sydney Australia
5. Department of Medicine; Western Sydney University; Campbelltown Australia
6. Department of Medicine; University of Otago; Christchurch New Zealand
7. Department of Clinical Pharmacology; Christchurch Hospital; Christchurch New Zealand
8. St Vincent's Clinical School; University of New South Wales; Sydney Australia