[1] Shanghai Jiao Tong Univ, Sch Med, Xin Hua Hosp, Dept Lab Med, Shanghai 200092, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Med, Xin Hua Hosp, Dept Gerontol, Shanghai 200092, Peoples R China
[3] Shanghai Jiao Tong Univ, Sch Med, Xin Hua Hosp, Dept Internal Cardiol, Shanghai 200092, Peoples R China