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 2024 Apr. 20];80(4). Available from: https://www.monaldi-archives.org/macd/article/view/23