%0 Journal Article %T Pulmonary hypertension in chronic obstructive pulmonary disease: Three case reports %A Chaouat Ari %A Gomez Emmanuel %A Chabot Fran£żois %J PVRI Review %D 2010 %I %U http://www.pvrireview.org/article.asp?issn=0974-6013;year=2010;volume=2;issue=2;spage=80;epage=84;aulast=Chaouat