Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Takahisa Kimitoshi and Tashiro Hideo and Wakabayashi Mari and Kusuyama Akira and Murai Ryuzo and Ando Hiroshi and Itsubo Kihachiro,"A Case of Hyperplastic Polyp in the Duodenal Bulb, in which Endoscopic Ultrasonography was Useful for Determination of the Choice of Treatment",Progress of Digestive Endoscopy(1972),0389-9403,Japan Gastroenterological Endoscopy Society Kanto Chapter,1993,42,0,228-231,https://cir.nii.ac.jp/crid/1390282680733785856,https://doi.org/10.11641/pdensks.42.0_228