Fuwai Hospital;
National Center for Cardiovascular Diseases;
Chinese Academy of Medical Sciences and Peking Union Medical College;
Beijing;
China;
XiangTan Center Hospital;
Xiangtan;
Hunan;
China;
Department of Cardiology;
Weinan Central Hospital;
Weinan;
Shanxi;
China;
不详;
Acute; myocardial; infarction; Diabetes; Symptoms; Patient; delay;