DOI resolved by resea

ACC/AHA Guidelines for the Management of Patients With Unstable Angina and Non–ST-Segment Elevation Myocardial Infarction: Executive Summary and Recommendations

I 1. The initial evaluation of the patient with suspected ACS should include a search for noncoronary causes that could explain the development of symptoms. (Level of Evidence: C)

Eugene Braunwald, Elliott M. Antman, John W. Beasley, Robert M. Califf, Melvin D. Cheitlin, Judith S. Hochman, Robert H. Jones, Dean J. Kereiakes
https://resea.org/10.1161/01.cir.102.10.1193

Abstract

I 1. The initial evaluation of the patient with suspected ACS should include a search for noncoronary causes that could explain the development of symptoms. (Level of Evidence: C)