Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 10, Iss 18 (2021) Nestelberger, Thomas; Boeddinghaus, Jasper; Lopez Ayala, Pedro; Gehrke, Juliane; Twerenbold, Raphael; Cullen, Louise; Mueller, Christian (2021). Utility of Echocardiography in Patients With Suspected Acute Myocardial Infarction and Left Bundle-Branch Block. Journal of the American Heart Association, 10(18), e021262. American Heart Association 10.1161/JAHA.121.021262