1Matetzky S,Freimark D,Feinberg MS,et al.Acute myocardial infarction with isolated ST segment elevation in posterior chest leads V7 ~V9[].Journalism Assn of Community College.1999
2Agarwal JB,Kenneth K,Aurignac F,et al.Importance of posterior chest leads in patients with suspected myocardial infarction,but nondiagnostic, routine 12-lead electrocardiogram[].The American Journal of Cardiology.1999