1. From the Department of Community and Family Medicine (X.-H.Z.), The Chinese University of Hong Kong, Hong Kong, China; the CVD Control and Research Office (T.G.), Chinese Academy of Medical Sciences, Beijing, China; the Center for Health Statistics Information (J.M.), The Ministry of Health, PRC, Beijing, China; and the National Center for CVD Control and Research (L.L.), The Ministry of Health, PRC, Beijing, China.