[1] Changi Gen Hosp, Hlth Serv Res, 2 Simei St 3, Singapore 529889, Singapore
[2] Singapore Hlth Serv, Ctr Populat Hlth Res & Implementat, Singapore, Singapore
[3] Duke NUS Med Sch, Hlth Serv & Syst Res, Singapore, Singapore
[4] Changi Gen Hosp, Geriatr Med, Singapore, Singapore
[5] Changi Gen Hosp, Rehabil Serv, Singapore, Singapore
[6] Changi Gen Hosp, Singapore Sport & Exercise Med Ctr, Singapore, Singapore
[7] Changi Gen Hosp, Community Nursing, Singapore, Singapore
[8] Changi Gen Hosp, Community & Mental Hlth, Singapore, Singapore