Hwee Sing Khoo1, Winnie L Teo. 1. Research analyst, Health Outcomes and Medical Education (HOMER), National Healthcare Group, Singapore; ORCID: http://orcid.org/0000-0002-8880-3494. Manager, Group Education, National Healthcare Group, Singapore; winnie_ll_teo@nhg.com.sg; ORCID: http://orcid.org/0000-0003-4592-6344.