Association of Serum Vitamin D Levels with Disease Severity among Patients with Chronic  Rhinosinusitis in Mirpur, Azad Jammu and Kashmir. Medical Forum Monthly, [S. l.], v. 36, n. 10, 2025. DOI: 10.60110/medforum.361008. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/5437.. Acesso em: 26 dec. 2025.