| Authors: |
Zhang L; Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China., Tian H; Changsha Stomatological Hospital, Hunan University of Traditional Chinese Medicine, Changsha, China.; Department of Stomatology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China., Ma Y; Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China.; Department of Clinical Laboratory Diagnostics, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Xu J; Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China., Guo C; Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China.; Medical School, University of Chinese Academy of Sciences, Beijing, China., Wang Z; Department of Stomatology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China. wzuomin@sina.cn., Ma J; Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China. majie4685@bjhmoh.cn. |