RELATIONSHIP OF SERUM VITAMIN D LEVEL WITH ATRIAL FIBRILLATION AMONG YOUNG ADULT. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 2, p. 7122–7131, 2026. DOI: 10.66021/pakmcr1474. Disponível em: https://pakjmcr.com/index.php/1/article/view/1474. Acesso em: 9 jul. 2026.