Abdul Muttalif ARB. The Unique and Evidence-Based Meningococcal Vaccine for Hajj and Umrah Pilgrims. Int. J. Hum. Health Sci. [Internet]. 2025 Mar. 30 [cited 2026 Jun. 5];9(10):S10. Available from: https://www.ijhhsfimaweb.info/index.php/IJHHS/article/view/779