A retrospective cohort study on oesophageal food bolus obstruction in the North Denmark region in 2021—two thirds were never diagnosed with a cause oleh Jacob Holmen Terkelsen, Martin Hollænder, Kasper Bredal, Sara Munk Nielsen, Kristoffer Vittrup Koed Thomsen, Amanda Baggerman, Emilia Ofverlind, Alptug Mertcan Koc, Hannah Pakes, Marco Bassam Mahdi, Sanne Ørnfeldt Larsen, Vanessa Parra Gonzalez, Johannes Riis, Line Tegtmeier Frandsen, Dorte Melgaard, Anne Lund Krarup