ZANGANA, S. N.; AL-OTHMAN, A. A.; HABEEB, M. A. The frequency of vitamin D deficiency in patients with left ventricular systolic dysfunction in Erbil-Iraq. Iraq Medical Journal, [S. l.], v. 3, n. 1, 2019. Disponível em: https://iraqmedj.org/index.php/imj/article/view/557. Acesso em: 4 may. 2024.