Xiao, Chuan, Department of Urology, Pangang Group General Hospital, Sichuan, 617023, China Xiao, Chuan, Panzhihua general hospital, Panzhihua,Sichuan, 617000, China Xie, Chuanqing, Department of endocrinology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China