1. Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
2. Beijing D.A. Medical Laboratory, Beijing 102600, China
3. National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
4. Research and Development Centre, Chengdu Baiyu Pharmaceutical Co., Ltd., Chengdu 611130, China