Kumar, R. , Ranjan, R., Singh, P.P. , Pranay, K. and Kumar, D. 2025. Association of Serum Vitamin D Levels in Patients with Allergic Rhinitis at a Tertiary Care Health Centre in Bihar. International Journal of Medical and Biomedical Studies. 9, 5 (Sep. 2025), 1–5. DOI:https://doi.org/10.32553/ijmbs.v9i5.3111.