Impact of Iron and Vitamin B 12 Deficiency on Hemoglobin Levels and Complete Blood Count Indices: A Laboratory-Based Study in Surman , Libya. م ع ش [Internet]. 2026 Jan. 12 [cited 2026 Mar. 7];10(ملحق 38):3120-5. Available from: https://www.cjos.dtasd.com/index.php/journal/article/view/1413