1Yamaji H, Iwasaki K, Kusachi S, et al. Prediction of acute left main coronary artery obstruction by 12-lead electroeardiography. ST segment elevation in lead aVR with less ST segment elevation in lead V ( 1 ). J Am Coll Cardiol,2001,38 : 1348-1354.
2Gorgels AP, Engelen DJ, Wellens HJ. Lead aVR, a mostly ignored but very valuable lead in clinical electrocardiography. J Am Coll Cardiol, 2001,38:1355-1356.