Ingestion of corrosive substances and the endoscopic role in assessing the severity of caustic injury - Natasha Simonovska; Vesna Velikj Stefanovska; Aleksandra Babulovska; Zanina Pereska; Irena Jurukov; Afrodita Berat-Huseini; Kristin Kostadinovski; Kiril Naumovski (Gastroenterology Review)