1. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
2. Center for Global Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
3. Department of Orthodontics and Dentofacial Orthopedics, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA
4. Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
5. Department of Dermatology, Massachusetts General Hospital, Boston, MA 02114, USA
6. Department of Orthopedics, Taichung Veterans General Hospital, Taichung 407, Taiwan
7. Department of Orthopedics, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
8. School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
9. Management Office for Health Data, China Medical University Hospital, Taichung 404, Taiwan
10. Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
11. Graduate Institute of Integrated Medicine, China Medical University, Taichung 404, Taiwan
12. Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan
13. Department of Recreation Sports Management, Tajen University, Pingtung 907, Taiwan
14. Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan