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2. Cytological examination of the gastrointestinal tract;Brandborc;Med Clin N America,1968
3. Gastric biopsy under direct vision by the fibergastroscope;Kasugai;Gastrointestinal Endoscopy,1968
4. Gastric lavage cytology and biopsy for early gastric cancer under direct vision by the fibergastroscope;Kasugai;Gastrointestinal Endoscopy,1968
5. Endoscopic biopsy and cytology in esophageal and gastric carcinoma with the fiberesophagoscope;Yoshii;Gastrointestinal Endoscopy,1971