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GHOFRANI H, VOSWINCKEL R, REICHENBERGER F, OLSCHEWSKI H, HAREDZA P, KARADAS B, SCHERMULY R, WEISSMANN N, SEEGER W, GRIMMINGER F. Differences in hemodynamic and oxygenation responses to three different phosphodiesterase-5 inhibitors in patients with pulmonary arterial hypertensionA randomized prospective study. Journal of the American College of Cardiology. 2004 Oct 06;44(7):1488–96. doi: 10.1016/s0735-1097(04)01362-2. |