title: Vitamin B12 deficiency in patients receiving metformin: clinical data.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Andrès
authors.forename: Laure
authors.initials: L
authors.lastname: Federici
mesh_terms: D000368:Aged; D006801:Humans; D007004:Hypoglycemic Agents / Q000009:adverse effects*; D008687:Metformin / Q000009:adverse effects*; D013997:Time Factors; D014806:Vitamin B 12 Deficiency / Q000139:chemically induced*
chemical_list: D007004:Hypoglycemic Agents; D008687:Metformin