Optimal number of endoscopic biopsies for diagnosis of early gastric cancerMasaki Nishitani, Hisashi Doyama, Kenichi Takemura et al.|Endoscopy International Open|2019Cited by 14
Does previous biopsy lead to cancer overdiagnosis of superficial non-ampullary duodenal epithelial tumors?Shigetsugu Tsuji, Kenshi Yao, Hisashi Doyama et al.|Endoscopy International Open|2021Cited by 8
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Successful intubation of the periampullary diverticulum in post-Billroth II method-reconstructed intestinal tract using clip-and-snare method with a pre-looping techniqueHisashi Doyama, Kunihiro Tsuji, Shigetsugu Tsuji et al.|Clinical Endoscopy|2025Cited by 0
White Globe Appearance Is an Endoscopic Predictor of Metachronous Multiple Gastric CancersManami Utsunomiya, Hisashi Doyama, Hiroyoshi Nakanishi et al.|DEN Open|2026Cited by 0