1 From the Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore.
2 Division of Neurology, University Medicine Cluster, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228, Singapore.
3 Department of Cardiology, National University Heart Centre, Singapore, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore.
4 Internal Medicine Residency, National University Health System, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228, Singapore.