Successful Electrical Cardioversion of Long-Standing Persistent Atrial Fibrillation: Tips and Tricks: Electrical Cardioversion of Long-Standing Persistent Atrial Fibrillation. Rhythmos [Internet]. 2020 Jul. 15 [cited 2025 May 3];15(3):52-4. Available from: https://www.rhythmos.gr/index.php/Rhythmos/article/view/485