TY - JOUR T1 - Sildenafil treatment in COPD does not effect stroke volume or exercise capacity JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/09031936.00114207 AU - H. Rietema AU - S. Holverda AU - H.J. Bogaard AU - J. Tim Marcus AU - H.J. Smit AU - N. Westerhof AU - P.E. Postmus AU - A. Boonstra AU - A. Vonk-Noordegraaf Y1 - 2007/12/19 UR - http://erj.ersjournals.com/content/early/2007/12/19/09031936.00114207.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -