Upegui, Santiago, María Adelaida Orozco Vásquez, and Marie Claire Berrouet Mejía. 2021. “Metformin Toxicity, Beyond Renal Failure and Lactic Acidosis: Report of 2 Cases”. Medicina UPB 40 (2): 80-83. https://doi.org/10.18566/medupb.v40n2.a11.