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1 Department of Epidemiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases, Beijing, China.
2 Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.
3 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases, Beijing, China. chshma@vip.sina.com.
1 Department of Epidemiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases, Beijing, China.
2 Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.
3 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases, Beijing, China. chshma@vip.sina.com.