Urban Rural differences in Vitamin D status in Erbil Governorate: A Cross-Sectional Study: Urban Rural differences in Vitamin D status. Academic Journal of International University of Erbil, [S. l.], v. 3, n. 1, p. 586–592, 2026. DOI: 10.63841/10.63841/iue31686. Disponível em: https://ojs.cihanrtv.com/index.php/public/article/view/108.. Acesso em: 24 jan. 2026.