Department of Cardiology Shaanxi Provincial People's Hospital Xi'an Jiaotong University Xi'an 710068;
Department of Cardiology Zhejiang Provincial Ningbo City Hospital Ningbo 315012;
Department of Cardiology First Hospital of Xi'an Jiaotong University Xi'an 710061;
Department of Cardiology First Hospital of Lanzhou Medical College Lanzhou 730000;
Department of Cardiology Hubei Provincial Shiyan City Hospital Shiyan 442000;
Cardiology Center of LDS Hospital Salt Lake City 84132 USA;
classic risk factors; coronary artery disease; high density lipoprotein cholesterol; Chinese Han population;