Hongxia Jiang1, Luna Liu2, Haili Wang1, Guiqin Sun3. 1. Department of Endocrinology, Qingdao Third People's Hospital Affiliated to Qingdao University, Qingdao, China. 2. Department of Neurological Rehabilitation, Qingdao Third People's Hospital Affiliated to Qingdao University, Qingdao, China. 3. Department of Endocrinology, Qingdao Third People's Hospital Affiliated to Qingdao University, Qingdao, China - sunguiqin1977@126.com.