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2. Aspects endoscopiques et résultats de la biopsie dirigée dans 165 cas de cancer de l'estomac;Liguory;Arch Fr Mal App Dig,1972
3. Diagnostic accuracy of fiberendoscopy in the detection of upper intestinal malignancy: a follow-up analysis;Dekker;Gastroenterology,1977
4. An evaluation of gastric biopsy in the diagnosis of gastric ulcer;Sancho-Poch;Gastrointest Endosc,1978
5. Evaluation of biopsy and cytology in the diagnosis of gastric cancer;Kasugai;Am J Gastroenterol,1974