RECTAL GRANULAR‐CELL TUMOR DIFFICULT TO DISTINGUISH FROM CARCINOID TUMORTeppei Nakanome, Isao Okayasu, Kaoru Yokoyama et al.|Digestive Endoscopy|2010Cited by 14
A case of non-specific multiple ulcers of the small intestine accompanied by colonic lesions similar to ulcerative colitisHitomi Takeuchi, Isao Okayasu, Kiyonori Kobayashi et al.|Progress of Digestive Endoscopy|2006Cited by 0
A case of small-intestinal bleeding ulcer, diagnosed and treated with a single-balloon enteroscopeMasaru Yamagata, Katsunori Saigenji, Yasuhiro Ishiguro et al.|Progress of Digestive Endoscopy|2007Cited by 0
A case of small intestine carcinoid tumor diagnosisted by capsule endoscopy and single-balloon enteroscopyAya Kato, Isao Okayasu, Kaoru Yokoyama et al.|Progress of Digestive Endoscopy|2009Cited by 0
A case of small colorectal carcinoma 10mm in size invading the muscularis propriaYoshiaki Tanaka, Isao Okayasu, Miwa Sada et al.|Progress of Digestive Endoscopy|2007Cited by 0