Kildušis, E. et al. 2018. Endoscopic elimination of foreign body from the upper gastrointestinal tract in Republican Vilnius university hospital: 25 years’ experience. Lietuvos chirurgija. 17, 1-2 (Nov. 2018), 17–24. DOI:https://doi.org/10.15388/LietChirur.2018.1-2.11737.