1. Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing, P.R. China.
2. Department of Pathology, Beijing Hospital, National Center of Gerontology, National Health Commission, Beijing, P.R. China. Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, P.R. China.
3. Clinical Biobank, Beijing Hospital, National Center of Gerontology, National Health Commission, Beijing, P.R. China. Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, P.R. China.
4. Department of Urology, Beijing Hospital, National Center of Gerontology, National Health Commission, Beijing, P.R. China. Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, P.R. China.