Internal Medicine, Singapore Health Services, Singapore
Choon Chiat Oh, MBBS, FRCP (UK)
Department of Dermatology, Singapore General Hospital, Singapore; Duke-NUS Medical School, Singapore; Correspondence to: Choon Chiat Oh, MBBS, MRCP (UK), Department of Dermatology, Level 4, Academia, Singapore General Hospital, 20 College Rd, Singapore 169856
