Atrial fibrillation and heart failure: pathophysiological relationship, clinical manifestations, and prognostic significance. Bulgarian Medical Journal, Sofia, BG, v. 20, n. 1, p. 18–24, 2026. Disponível em: https://journals.mu-sofia.bg/index.php/bmj/article/view/794.. Acesso em: 28 apr. 2026.