[Contribution of biopsies fibroscopy to the diagnosis of gastric tumors].
D001706:Biopsy; D005336:Fiber Optic Technology; D005773:Gastroscopy / Q000379:methods*; D006801:Humans; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology