[Preventive use of vitamin B12 after total gastrectomy].
D005743:Gastrectomy / Q000009:adverse effects*; D006801:Humans; D014805:Vitamin B 12 / Q000627:therapeutic use*
D014805:Vitamin B 12
Prodilakticheskoe primenenie vitamina B12 posle total'noĭ gastrektomii.