aMonash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University

bDepartment of Diabetes and Vascular Medicine, Monash Health, Victoria, Australia

Correspondence to Dr Chau Thien Tay, PhD, FRACP, MBBS, Research Fellow, Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, VIC, Endocrinologist, Department of Diabetes and Vascular Medicine, Monash Health, VIC, Mailing address: Locked Bag 29, Clayton, VIC 3168, Australia. Tel: +61 3 8572 2661; fax: +61 3 9594 7554; e-mail: [email protected]