Education
Doctor of Medicine, Queen's U., Belfast, Northern Ireland, 1976; Doctor of Science, Queen's U., Belfast, Northern Ireland, 1981.
Doctor of Medicine, Queen's U., Belfast, Northern Ireland, 1976; Doctor of Science, Queen's U., Belfast, Northern Ireland, 1981.
Professor epidemiology, U. Nottingham, England, 1981-1989; professor epidemiology, U. Otago, New Zealand, since 1989.