1. Nursing Department, The First Affiliated Hospital of Xi'an Jiaotong University. Xi’an 710061, China
2. Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi 712082, China
3. Department of Neurology, Affiliated hospital of Xizang Minzu University, Xianyang, Shaanxi 712082, China
4. Department of Clinical Laboratory, Affiliated hospital of Xizang Minzu University, Xianyang, Shaanxi 712082, China
5. Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi’an 710069, Shaanxi, China
6. Department of geriatric endocrinology, the First Affiliated Hospital of Xi'an Jiaotong University,Xi’an 710061,China