Open access echocardiography. Hospital patients need open access echocardiography.
Zarifis
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Beevers
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Lip
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D000368:Aged; D002303:Cardiac Output, Low / Q000000981:diagnostic imaging; D004452:Echocardiography / Q000706:statistics & numerical data*; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies