Affiliation: | 1. Department of Dermatology, Singapore General Hospital, Singapore;2. SingHealth Corporate, Office of Research, Centre for Health Services Research, SingHealth, Singapore;3. Duke-NUS Graduate Medical School & SingHealth Academic Medicine Research Institute, Singapore;4. Department of Infectious Diseases, Singapore General Hospital, Singapore;5. William S. Middleton Memorial Veterans Hospital, Madison, WI, USA;6. Section of Infectious Diseases, Department of Medicine, University of Wisconsin Medical School, USA |