1. Department of Medicine, The 522 Hospital of the Chinese PLA, Luoyang 471003, China
2. Department of Endocrinology and Metabolism, The First Affiliated Hospital of Air Force Military Medical University (Fourth Military Medical University), Xi’an 710032, China
3. Queen Marry College, Nanchang University, Nanchang 330000, China
4. Department of Endocrinology and Metabolism, Xi’an Ninth Hospital, Xi’an 710054, China
5. Medical Department, Luoyang Fifth People’s Hospital, Luoyang 471003, China
6. PLA Rocket Force Characteristic Medical Center, Beijing 100088, China
7. Institute of Geriatrics & National Clinical Research Center of Geriatrics Disease, Chinese PLA General Hospital, Beijing 100853, China