Normal angiogram in patients with acute coronary syndrome: searching for unusual substrates of myocardial ischemia.
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D000208:Acute Disease; D000789:Angina, Unstable / Q000150:complications* / Q000000981:diagnostic imaging*; D000792:Angiography; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications* / Q000000981:diagnostic imaging*; D017202:Myocardial Ischemia / Q000209:etiology*; D012016:Reference Values