Bo, Mario, Francesco Giannecchini, Martina Papurello, and Enrico Brunetti. “Oral Anticoagulant Therapy in Atrial Fibrillation Older Patients With Previous Bleeding”. Monaldi Archives for Chest Disease 90, no. 1 (March 9, 2020). Accessed April 20, 2024. https://www.monaldi-archives.org/macd/article/view/1252.