Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shimamura Yoshitaka and Yokoyama Takuya and Suzuki Takuzi and Utsumi Mizuo,A Case of Incipient Cancer of the Cervical Esophagus,Nihon Kikan Shokudoka Gakkai Kaiho,00290645,The Japan Broncho-esophagological Society,1974,25,1,36-41,https://cir.nii.ac.jp/crid/1390282679989766272,https://doi.org/10.2468/jbes.25.36