Accuracy of Laryngeal Examination during Upper Gastrointestinal Endoscopy for Premalignancy Screening: Prospective Study in Patients with and without Reflux Symptoms - Cammarota, G; Galli, J; Agostino, S; De Corso, E; Rigante, M; Cianci, R; Cesaro, P; Nista, E C; Candelli, M; Gasbarrini, A; Gasbarrini, G (Endoscopy, 2006)