Gwalabe, S. A., Adamu, A., Kirfi, A. M., Dunga, J. A., Maigari, I. M., & Umar, M. S. (2026). Serum Vitamin D Level and Severity of Adult Allergic Rhinitis at a Tertiary Hospital in Northeast Nigeria. Nigerian Journal of Basic and Clinical Sciences, 21(2), 110-114. https://doi.org/10.65843/s7wxdw66