1. Department of Medicine, Dunedin School of Medicine; University of Otago; Dunedin New Zealand
2. Department of Gastroenterology, Waitemata District Health Board; North Shore Hospital; Auckland New Zealand
3. Department of Preventive and Social Medicine; University of Otago; Dunedin New Zealand
4. Southern Dermatology Locums Ltd.; Dunedin New Zealand
5. Gastroenterology Unit, Southern District Health Board; Dunedin Hospital; Dunedin New Zealand