Amador, Ana Filipa, Catarina Costa, Ricardo Pinto, Miguel Carvalho, Tânia Proença, João Calvão, Sandra Amorim, Mariana Paiva, João Carlos Silva, and Rui Rodrigues. “20-Year Follow-up of Rheumatic Mitral Stenosis Patients After Percutaneous Mitral Commissurotomy: Invasive Transmitral Gradient Differential As a Predictor of Events”. Monaldi Archives for Chest Disease (March 11, 2024). Accessed May 20, 2024. https://www.monaldi-archives.org/macd/article/view/2941.