Ureteropelvic junction obstruction caused by Fibroepithelial polyps in children. APU Journal, [S. l.], v. 33, n. 3, p. 109–112, 2017. DOI: 10.24915/aup.33.3.37. Disponível em: https://apujournal.com/index.php/aup/article/view/37. Acesso em: 25 may. 2026.