1. Coronado BE1, Pope JH, Griffith JL, Beshansky JR, Selker HP. Clinical features, triage, and outcome of patients presenting to the ED with suspected acute coronarysyndromes but without pain: a multicenter study. Am J Emerg Med. 2004 Nov;22(7):568-74.
3. Brieger D, Eagle KA, Goodman SG, et al. Acute Coronary Syndromes Without Chest Pain, An Underdiagnosed And Undertreated High-Risk Group*: Insights From The Global Registry Of Acute Coronary Events. Chest. 2004;126(2):461-469.