Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SAKANE M.,A Case of Differentiated Early Adenocarcinoma of the Stomach Forming Protruded Type Lesion,Dig Endosc,0915-5635,Wiley,1997,9,,300-304,https://cir.nii.ac.jp/crid/1570572701439077120,https://doi.org/10.1111/j.1443-1661.1997.tb00505.x