%0 Journal Article %T Sildenafil improves quality of life in men with heart failure and erectile dysfunction %A Freitas, D %A Athanazio, R %A Almeida, D %A Dantas, N %A Reis, F %J International Journal of Impotence Research %V 18 %N 2 %P 210-212 %@ 0955-9930 %D 2005-08-25 %I Nature Publishing Group UK %~ DeepDyve