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Use of brain natriuretic peptide to detect previously unknown left ventricular dysfunction in patients with acute exacerbation of chronic obstructive pulmonary disease. Swiss Med Wkly [Internet]. 2011 Nov. 7 [cited 2026 Jan. 10];141(4546):w13298. Available from: https://www.smw.ch/index.php/smw/article/view/1375