1. Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
2. Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
3. Department of Psychiatry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
4. Mplus Foundation, Chiang Mai, Thailand
5. Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
6. Section of Endocrinology, Atlanta VA Medical Center, Decatur, Georgia, USA