CONFOCAL LASER ENDOMICROSCOPY IN THE ASSESSMENT OF PERSISTENT OR RECURRENT INTESTINAL METAPLASIA/NEOPLASIA AFTER ENDOSCOPIC TREATMENT OF BARRETT'S ESOPHAGUS RELATED NEOPLASIA – A PROSPECTIVE STUDY - Krajciova, J; Kollar, M; Maluskova, J; Kment, M; Vackova, Z; Spicak, J; Martinek, J (Endoscopy, 2019)