Acknowledgement
The authors wish to thank Kazuki Nagai, Akihiro Seki, Hidetoshi Nakagawa, Takashi Nakashima, Hiroki Matsukawa, Shinya Yamada, Keita Kita, Koki Yamagata, Emi Aburao, Kiichiro Kaji, Gen Sugiyama, Kouki Nio, Hiroki Nomura, Masaemon Momonoi, Kosuke Satomura, Yuta Tamaru, Seiya Kamata, Kota Kitagawa, Toshikatsu Tamai, and all endoscopy medical staff at the Kanazawa University Hospital.
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