NCT04777474 2022-12-07Benefit of Enhanced Contact Endoscopy in Pre-histological Diagnosis of Laryngeal and Hypopharyngeal Mucosal LesionsUniversity Hospital OstravaPhase NA Unknown150 enrolled
NCT02035735 2018-12-11Interest of Narrow Band Imaging in Detection of Upper Aerodigestive CancersUniversity Hospital, ToulousePhase NA Completed93 enrolled