[Potassium and sodium levels in cancer of the gastrointestinal tract before and after surgery].
D005770:Gastrointestinal Neoplasms / Q000378:metabolism* / Q000601:surgery; D006801:Humans; D011188:Potassium / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*; D014882:Water-Electrolyte Balance
D012964:Sodium; D011188:Potassium
Soderzhanie kaliia i natriia pri rake zheludochno-kishechnogo trakta do i posle operatsii.