A new model of control group for upper airway respiratory diseases studies - Anselmo-Lima, Wilma Terezinha; Buzatto, Guilherme; Tamashiro, Edwin; Valera, Fabiana Cardoso Pereira; Hyppolito, Miguel Angelo; Modena, Jose Luiz Pimenta; Saturno, Tamara; Arruda, Eurico (International Congress of the European Society of Pediatric Otorhinolaryngology (ESPO), 2014)