Affiliation: | 1. Faculty of Medicine, University of Sydney, City Rd Darlington, NSW 2006, Australia;2. School of Public Health, University Centre for Rural Health — North Coast, University of Sydney, 61 Uralba Street, Lismore, NSW 2480, Australia;3. Centre for Rural Health Research, University of British Columbia, 530–1501 West Broadway, Vancouver, BC V6J 4Z6, Canada |