CELIŃSKI, Krzysztof; FORNAL, Rafał; DWORZAŃSKI, Tomasz; SŁOMKA, Maria; MĄDRO, Agnieszka. Advances in gastrointestinal endoscopy in practical terms. Polish Journal of Public Health, Lublin, Poland, v. 122, n. 2, p. 211–216, 2012. Disponível em: https://czasopisma.umlub.pl/pjph/article/view/1775. Acesso em: 3 aug. 2025.