title: The use of phenformin and metformin.
mesh_terms: D000138:Acidosis / Q000139:chemically induced*; D006801:Humans; D008687:Metformin / Q000009:adverse effects* / Q000627:therapeutic use; D010629:Phenformin / Q000009:adverse effects* / Q000627:therapeutic use; D012306:Risk
chemical_list: D008687:Metformin; D010629:Phenformin