1 Division of Dermatology, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
2 Department of Dermatology, Chang Gung Memorial Hospital Linkou and Taipei Branch, Taoyuan, Taiwan.
3 College of Medicine, Chang Gung University, Taoyuan, Taiwan.
4 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
5 Department of Dermatology, The Warren Alpert Medical School, Brown University, Providence, Rhode Island.
6 Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island.
7 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts. eunyoung_cho@brown.edu.