THE CHANGE FROM GUAIAC TO IMMUNOCHEMICAL FAECAL TEST LEADS TO INCREASED ADENOMA DETECTION RATES IN A REGIONAL COLORECTAL SCREENING PROGRAM - Taveira, F; Areia, M; João, M; Elvas, L; Alves, S; Brito, D; Saraiva, S; Cadime, AT (Endoscopy, 2020)