1 Institute of Health Data Analytics and Statistics, College of Public Health, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan.
2 Center for Evidence-Based Stomatology, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
3 Department of Orthodontics and Dentofacial Orthopedics, Medical Faculty, Dental School, University of Bern, Bern, Switzerland. Electronic address: [email protected].