Abrignani, Maurizio Giuseppe, and Furio Colivicchi. “Thromboembolic and Hemorrhagic Risk Stratification in Patients With Atrial Fibrillation. Part I: The Thromboembolic Risk”. Monaldi Archives for Chest Disease 80, no. 2 (November 25, 2015). Accessed April 20, 2024. https://www.monaldi-archives.org/macd/article/view/80.