[1] Tan Tock Seng Hosp, Endocrinol, Singapore, Singapore
[2] NUS, DUKE NUS Grad Sch Med, Singapore, Singapore
[3] NUS, Yong Loo Lin Sch Med, Singapore, Singapore
[4] ASTAR, DUKE NUS Grad Sch Med, Quantitat Med, Singapore, Singapore
[5] ASTAR, Lee Kong Chian Sch Med, Singapore, Singapore
[6] ASTAR, Singapore Inst Clin Sci, Singapore, Singapore