A homemade endoscopic guillotine strikes again: removal of a nasogastric tube mysteriously knotted in the proximal third of the esophagus - Pinto do Couto, Fabio; Cavin, Aurélie; Pittet, Olivier; Archanioti, Paraskevi; Godat, Sébastien; Galasso, Domenico (Endoscopy, 2022)