1. Phase I Clinical Trial Center, Xiangya Hospital, Central South University Changsha PR China
2. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University Changsha PR China
3. Guangzhou Baiyunshan Pharmaceutical Holdings Co. Ltd., Baiyunshan Pharmaceutical General Factory Guangzhou PR China
4. Phase I Clinical Trial Center, The First People's Hospital of Chenzhou Chenzhou PR China