[1] Capital Med Univ, Beijing Anzhen Hosp, Dept Epidemiol, Beijing, Peoples R China
[2] Beijing Inst Heart Lung & Blood Vessel Dis, Beijing, Peoples R China
[3] Columbia Univ, Med Ctr, Div Gen Internal Med, New York, NY USA
[4] Columbia Univ Coll Phys & Surg, New York, NY 10032 USA
[5] Univ Calif San Francisco, Div Gen & Internal Med, San Francisco, CA 94143 USA
[6] Stanford Univ, Palo Alto VA Hlth Care Syst, Palo Alto, CA 94304 USA
[7] Stanford Univ, Dept Med, Palo Alto, CA 94304 USA
[8] Chinese Acad Med Sci, Cardiovasc Inst, Dept Evidence Based Med, Beijing 100730, Peoples R China
[9] Chinese Acad Med Sci, Fu Wai Hosp, Beijing 100730, Peoples R China
[10] Natl Cntr Cardiovasc Dis, Beijing, Peoples R China
[11] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Epidemiol, New Orleans, LA USA