Różańska , Maria, Martyna Zaleska, Piotr Suwalski, Dariusz A. Kosior, and Olga Możeńska. 2018. “An Episode of Paroxysmal Atrial Fibrillation With Unexpected Ending ”. Cardiology in Practice 12 (3-4), 3-5. https://journalsmededu.pl/index.php/kwp/article/view/1204.