Department of Endocrinology, Peking Union Medical College Hospital, Beijing, China. Beijing Friendship Hospital Capital Medical University, Beijing, China. Tianjin Hospital, Tianjin, China. Huadong Hospital affiliated to Fudan University, Shanghai, China. Nanjing Drum Tower Hospital Affiliated of Nanjing University Medical School, Nanjing, China. Chengdu Military General Hospital, Chengdu, China. Shanghai Sixth People Hospital, Shanghai, China. Department of Radiology, Peking Union Medical College Hospital, Beijing, China. Department of Nutrition, Peking Union Medical College Hospital, Beijing, China. Chugai Pharmaceutical Co., Ltd., Tokyo, Japan. Fujii Memorial Institute of Medical Sciences, Tokushima University, Tokushima, Japan. toshio.matsumoto@tokushima-u.ac.jp. Department of Endocrinology, Peking Union Medical College Hospital, Beijing, China. xiaweibo8301@163.com.