1. Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada.
2. Department of Public Health, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
3. Division of Genetics, Endocrinology, and Metabolism, Department of Pediatrics, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.