1. Department of Internal Medicine Taipei Veterans General Hospital Yuanshan Branch Yilan Taiwan
2. School of Medicine Chung Shan Medical University Taichung Taiwan
3. Division of Infectious Diseases, Department of Internal Medicine Chung Shan Medical University Hospital Taichung Taiwan
4. Center for Global Health, Perelman School of Medicine University of Pennsylvania Pennsylvania Philadelphia USA
5. Department of Epidemiology Harvard T.H. Chan School of Public Health Massachusetts Boston USA
6. Department of Dermatology Massachusetts General Hospital Massachusetts Boston USA