Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hamada Fumika and Sato Harushiro and Hagiwara Akira and Yoshida Tomoyuki and Hiraide Fumihisa and Funasaka Sotaro,A Case of Pyriform Sinus Fistula.,Nihon Kikan Shokudoka Gakkai Kaiho,0029-0645,The Japan Broncho-esophagological Society,1997,48,4,346-350,https://cir.nii.ac.jp/crid/1390282679989774720,https://doi.org/10.2468/jbes.48.346