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Matches in Nanopublications for { ?s ?p "[To investigate whether vascular endothelial growth factor (VEGF) might be implicated as a mediator in COPD-associated pulmonary vascular changes, we studied surgical specimens obtained from 19 nonsmokers, 21 smokers with normal lung function, 28 patients with moderate COPD, and 10 patients with severe emphysema.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en ?g. }

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