Qutob MS, Takruri HR, Barghouti FF. Evaluation of True Vitamin B12 Deficiency in a Group of Jordanians Aged 20-40 Years Visiting the Jordan University Hospital. Pak. J. Nutr. [Internet]. 2011 Mar. 15 [cited 2025 Aug. 15];10(4):343–349. Available from: https://pjnonline.org/pjn/article/view/1414