Correale M, Totaro A, Ferraretti A, Di Biase M, Brunetti ND. Sildenafil improves clinical and functional status of an elderly postmenopausal female with ‘out of proportion’ PH associated with left heart disease. Monaldi Arch Chest Dis [Internet]. 2013 Dec. 30 [cited 2025 May 22];80(4). Available from: https://www.monaldi-archives.org/macd/article/view/23