Dornase alfa improves the health-related quality of life among Brazilian patients with cystic fibrosis--a one-year prospective study. - Rozov T; de Oliveira VZ; Santana MA; Adde FV; Mendes RH; Paschoal IA; Caldeira Reis FJ; Higa LY; Toledo AC Jr; Pahl M (Pediatric pulmonology, 2010)