Al-Tahir, M.; Ibrahim, N.; Nouh, A.; Al-Darmoun, M.; Alalem, A. The Effect of Metformin on Vitamin B12 in Type 2 Diabetes Patients in Wadi Etba Region, Southern Libya. waujpas 2025, 3 (2), 116-119. https://doi.org/10.63318/waujpasv3i2_14.