Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MOTOJIMA Teiji and NABEYA Kinichi and FUKUZUMI Naoyoshi,PRIMARY MALIGNANT MELANOMA OF THE ESOPHAGUS SIGNIFICANT WITH POLYPOID GROWTH AND SUPERFICIAL SPREADING,The Japanese journal of gastroenterological surgery,03869768,The Japanese Society of Gastroenterological Surgery,1985-09-01,18,9,2061-2064,https://cir.nii.ac.jp/crid/1571135651820014848,