Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Masashi Hirota and Kiyokazu Nakajima and Yoshihito Souma,Assistive esophagoscopy during laparoscopic surgery for intra-thoracic stomach,Esophagus : official journal of the Japan Esophageal Society,16129059,Tokyo : Springer Japan,2013-06,10,2,70-78,https://cir.nii.ac.jp/crid/1523106605284872320,