Prevalence of respiratory viruses in children with chronic tonsillits - Valera, Fabiana Cardoso Pereira; Proença-Modena, L.; Jacob, G.; Buzatto, P.; Saturno, T.; Souza, J.; Paula, F. E.; Tamashiro, Edwin; Arruda, Eurico; Anselmo-Lima, Wilma Terezinha (International Congress of the European Society of Pediatric otorhinolaryngology (eSpo), 2012)