Asymptomatic gastro-esophageal reflux in children with pharyngeal tonsil hypertrophy and chronic rhinosinusitis - Valera, Fabiana Cardoso Pereira; Braga, A. A.; Tamashiro, Edwin; Demarco, R. C.; Anselmo-Lima, Wilma Terezinha (Congress of The European Rhinologic Society, 2010)