ANG, KS; ONG, EG. Diagnostic value of rectal retroflexion in polyp and adenoma detection. Philippine Journal of Gastroenterology, [S. l.], v. 11, n. 2, 2022. Disponível em: https://philjgastro.com/index.php/pjg/article/view/28. Acesso em: 30 jun. 2026.