1. Beijing Key Laboratory of Lignocellulosic Chemistry, College of Material Science and Technology, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, China
2. Department of Acupuncture and Massage, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Science, No. 1 Dongdan Dahua Road, Dongcheng District, Beijing 100730, China