1. Internal Medicine Residency Program , Department of Medicine, , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
2. National University Hospital , Department of Medicine, , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
3. Yong Loo Lin School of Medicine, National University of Singapore , 10 Medical Dr, Singapore 117597, Singapore
4. Department of Cardiology, National University Heart Center , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
5. Pre-hospital Emergency Research Center, Duke-NUS Medical School , 8 College Road, Singapore 169857, Singapore
6. Division of Neurology , Department of Medicine, , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
7. Division of Infectious Diseases , Department of Medicine, , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
8. Division of Respiratory and Critical Care Medicine , Department of Medicine, , 5 Lower Kent Ridge Road, Singapore 119074, Singapore
9. Department of Haematology-Oncology, National University Cancer Institute , National University Health System, 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore