Department of Gastroenterology and Neurology Faculty of Medicine, Kagawa University, Kagawa, Japan.
Dig Endosc. 2019 Mar;31(2):e42-e43. doi: 10.1111/den.13321. Epub 2019 Jan 27.
https://onlinelibrary.wiley.com/page/journal/14431661/den13321-sup-0001-vids1.htm a video of this article