.SHARBA, Intisar; MAJID ABD-ALAMEER, Zahraa. The Role of Vitamin D Deficiency in Predicting Peptic Ulcer Risk. Al-Kufa University Journal for Biology, Kufa, Najaf, IRAQ, v. 17, n. 1, p. 83–92, 2025. DOI: 10.36320/ajb/v17.i1.19178. Disponível em: https://journal.uokufa.edu.iq/index.php/ajb/article/view/19178. Acesso em: 7 aug. 2026.