1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
2. Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan.
3. School of Public Health, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
4. Taitung Hospital, DOH, Taitung City, Taiwan.