1Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea.
2Cardiovascular and Metabolic Disease Etiology Research Center, Ajou University School of Medicine, Suwon, Korea.
3Department of Endocrinology and Metabolism, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
4Department of Endocrinology and Metabolism, Kyung Hee University School of Medicine, Seoul, Korea.
5Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
6Department of Endocrinology and Metabolism, Chosun University Hospital, Chosun University College of Medicine, Gwangju, Korea.
7Department of Endocrinology and Metabolism, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
8Department of Endocrinology and Metabolism, Yeungnam University College of Medicine, Daegu, Korea.
9Department of Endocrinology and Metabolism, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea.
10Division of Endocrinology and Metabolism, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea.
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