title: [Vitamin B12 deficiency in patients treated with metformin: an approach to adopt].
authors.forename: Jordi
authors.initials: J
authors.lastname: Acezat Oliva
authors.forename: Enric
authors.initials: E
authors.lastname: Simó Cruzet
mesh_terms: D006801:Humans; D007004:Hypoglycemic Agents / Q000009:adverse effects*; D008687:Metformin / Q000009:adverse effects*; D014806:Vitamin B 12 Deficiency / Q000139:chemically induced*
chemical_list: D007004:Hypoglycemic Agents; D008687:Metformin