Fig. 1From: A retrospective cohort study on oesophageal food bolus obstruction in the North Denmark region in 2021—two thirds were never diagnosed with a causeA + B: Endoscopy (A) and biopsy rates (B) among patients presenting to a hospital with FBO in the NDR in 2021. Abbreviations: FBO; food bolus obstruction, NDR; North Denmark regionBack to article page