[On the value of determining thiamine compound excretion in the diagnosis of cancer of the gastrointestinal tract].
D005770:Gastrointestinal Neoplasms / Q000652:urine*; D006801:Humans; D008403:Mass Screening; D013831:Thiamine / Q000652:urine*
D013831:Thiamine
O tsennosti opredeleniia ékskretsii tiaminosoedineniĭ dlia diagnostiki raka zheludochno-kishechnogo trakta.