title: [On the use of vitamin B 12 in the oncological clinic].
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000188:drug therapy*; D014805:Vitamin B 12 / Q000627:therapeutic use*
chemical_list: D014805:Vitamin B 12
vernacular_title: O primenenii vitamina B 12 v onkologicheskoĭ klinike.