1. Department of Biostatistics, Boston University School of Public Health, MA;
2. Department of Medicine, Boston University School of Medicine, MA;
3. Department of Medicine, Duke University School of Medicine, Durham, NC;
4. Centre for Research & Development of Medical Diagnostic Laboratories, Khon Kaen University, Khon Kaen, Thailand;
5. Department of Pediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong, SAR, China;
6. Department of Pediatrics and Adolescent Medicine, Chinese University of Hong Kong, Hong Kong, SAR, China; and
7. Center for Human Genetics, Boston University School of Medicine, MA