1 School of Medicine, Chung Shan Medical University, Taichung, Taiwan, Republic of China.
2 Department of Orthopedics, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan, Republic of China.
3 Center for Global Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
4 Graduate Institute of Biomedical Electronics and Bioinformatics, College of Electrical Engineering and Computer Science, National Taiwan University, Taipei, Taiwan, Republic of China.
5 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
6 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA.