1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China.
2. Division of Chest Medicine, Buddhist Tzu Chi General Hospital, Taipei, Taiwan, Republic of China.
3. Division of Endocrinology and Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China.
4. Division of Endocrinology and Metabolism, Department of Internal Medicine, Buddhist Tzu Chi General Hospital, Taipei, Taiwan, Republic of China.