[1] Peking Univ, Dept Global Hlth, Sch Publ Hlth, 38 Xue Yuan Rd, Beijing 100191, Peoples R China
[2] Peking Univ, Inst Global Hlth & Dev, Beijing, Peoples R China
[3] China Cardiovasc Assoc, Suzhou, Peoples R China
[4] China Chest Pain Ctr, Suzhou, Peoples R China
[5] Peking Univ First Hosp, Div Cardiol, Beijing 100191, Peoples R China
[6] RTI Int, Waltham, MA USA
[7] Univ N Carolina, Div Cardiovasc Med, Sch Med, Chapel Hill, NC 27515 USA