Endoscopic surveillance in serrated polyposis syndrome: a randomized controlled trial comparing two- vs. three-year colonoscopy intervals - Lopez, J Vicente; Rodriguez, D Alcalde; Hernandez, L Villalba; Pedregal, P Pascual; Adan, L Merino; Polo Ortiz, F; Bessa Caserras, X; Marín Gabriel, J C (Endoscopy, 2025)