GWALABE, Sabiu A.; ADAMU, Auwal; KIRFI, Abdullahi M.; DUNGA, Jacob A.; MAIGARI, Ibrahim M.; UMAR, Mustapha S. Serum Vitamin D Level and Severity of Adult Allergic Rhinitis at a Tertiary Hospital in Northeast Nigeria. Nigerian Journal of Basic and Clinical Sciences, Nigeria, v. 21, n. 2, p. 110–114, 2026. DOI: 10.65843/s7wxdw66. Disponível em: https://njbcs.ng/index.php/njbcs/article/view/21. Acesso em: 2 may. 2026.