1. Health Services Research Unit, Singapore General Hospital, Singapore, Singapore.
2. MOH Holdings Pte Ltd., Singapore, Singapore.
3. School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland.
4. School of Medicine, University College Cork, Cork, Ireland.
5. NUS Yong Loo Lin School of Medicine, Singapore, Singapore.
6. Department of Psychiatry, Singapore General Hospital, Singapore, Singapore.
7. SingHealth Duke-NUS Medicine Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore.
8. Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.