Dr. Memoona Jahangir, Wajid Rahim Awan, Maryam Gull, Muhammad Khurshaid, Dr Iraj Siddiqui, Nabila Farah. Biochemical Relationship Between Vitamin B12 Status, Homocysteine, and Cognitive Performance in Healthy Adults. JHWCR. 2026;4(6):1-8. doi:10.61919/9dgmde35