BALTRŪNAITĖ, Jūratė; TRAINAVIČIUS, Kęstutis. Perforated peptic ulcer in children: diagnosis and treatment. Lietuvos chirurgija, [S. l.], v. 14, n. 1, p. 38–45, 2015. DOI: 10.15388/LietChirur.2015.1.5330. Disponível em: https://test.zurnalai.vu.lt/lietuvos-chirurgija/article/view/5330. Acesso em: 25 oct. 2025.