1Zalenski RJ,Rhdman RJ,Edward PS,et al.value of posterior and right ventricular leads in comparison to the standard 12-lead electrocardio gram in evaluation of ST-segment elevation in suspected acute myocar dial infarction[J].Am J Cardiol,1997,79:1579.
2ZalensKi RJ,Cooke D,Rydman R,et al.Assessing the diagnostic value of an ECG containing leads V4R,V8 and V9:the 15 lead ECG[J].Ann Emerg Med,1993,22:786.
3China BL,Tan TC,Yip JWL,et al.Electrocardiographic patterns in posterior chest leads (V7,V8,V9)in normal subjective[J].Am J cardiol,2000,85:922.
4Agarwal J,Khaw K,Aurignac F,et al.Importance of posterior chest leads in patients with suspected myocardial infarction,but nondiagnostic,routine 12-lead electrocardiogram[J].Am J Cardiol,1999,83:323.