Konoplitsky, V., Dmytriiev, D., Kalinchuk, O., Konoplitskyi, D., & Blazhko, S. (2019). Bezoar gastrointestinal disease in children (literature review and interpretation of clinical observation). Perioperaciina Medicina, 2(2), 50-56. https://doi.org/10.31636/prmd.v2i2.7