1. Hubei Institute of Parkinson's Disease at Xiangyang No. 1 People's Hospital, Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
2. Hubei Province Hospital of Traditional Chinese Medicine, Hubei Province Academy of Traditional Chinese Medicine, Wuhan, Hubei 430061, P.R. China