Increasing prevalence of barrett esophagus but not of erosive esophagitis in a seven years period in a symptomatic population - Aercani, Gianluca; Anaelo, Rossi; Ricci, Gioraio; Caruso, Guglielmo; DeFabritiis, Gianfranco; Parri, Roberto; Suzzi, Alessandra; Pollino, Valeria; Gorini, Beatrice; Santilli, Francesco; Alvisi, Vittorio (Digestive and liver disease, 2001)