■Japan Gastroenterological Endoscopy Society
https://www.jges.net/english

■Sapporo Medical University Hospital
https://web.sapmed.ac.jp.e.asr.hp.transer.com/hospital/index.html

■COI
https://www.jges.net/english/announcements/conflict-of-interest-disclosure-statement

■HOKKAIDO LOVE
https://www.visit-hokkaido.jp/en/index.html