Tracheal carinal angle in evaluating left atrial size.
Silber
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D001982:Bronchial Diseases / Q000209:etiology; D006332:Cardiomegaly / Q000150:complications / Q000175:diagnosis*; D003251:Constriction, Pathologic / Q000209:etiology; D006801:Humans; D011859:Radiography; D014132:Trachea / Q000000981:diagnostic imaging*