Sucu MM, Karadede A, Aydinalp O, Ozturk O, Toprak N. The relationship between terminal QRS complex distortion and early low dose dobutamine stress echocardiography in acute anterior myocardial infarction. Jpn Heart J. 2004 May;45(3):373–86. doi: 10.1536/jhj.45.373. PMID: 15240958.