Authors
Jie Feng
Peking Union Medical College and Chinese Academy of Medical Sciences,, Beijing, China
National Institute of Geriatrics, Beijing Hospital,, Beijing, China
Gang Wan
Department of Molecular Epidemiology, Harbin Medical University,, Harbin, China
Xiaoquan Zhu
National Institute of Geriatrics, Beijing Hospital,, Beijing, China
Binyou Wang
Department of Molecular Epidemiology, Harbin Medical University,, Harbin, China