1 Department of Dermatology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
2 Department of Clinical Research Design and Evaluation, The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea; Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
3 Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
4 Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital, Korea.
5 Department of Policy Research Affairs, National Health Insurance Service Ilsan Hospital.
6 Department of Clinical Research Design and Evaluation, The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea; Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Epidemiology, and Welch Center for Epidemiology, Prevention, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore.
7 Department of Clinical Research Design and Evaluation, The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea; Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Epidemiology, and Welch Center for Epidemiology, Prevention, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore. Electronic address: [email protected].
8 Department of Dermatology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. Electronic address: [email protected].