1. Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, Qingdao, Shandong, China
2. Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, Rhode Island
3. Harvard University, Cambridge, Massachusetts
4. Division of Dermatology, Department of Medicine and Women’s College Research Institute, Women’s College Hospital, Toronto, Canada
5. Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island
6. Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
7. School of Public Health, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, Guangdong, China