Forced expiration technique: impact on the respiratory mechanics parameters of children and adolescents with cystic fibrosis. - Keil, Patricia Morgana Rentz; Wamosy, Renata Maba Gonçalves; Cardoso, Tayná Castilhob Juliana; Schivinskj, Camila Isabel Santos (Revista Paulista de Pediatria, 2025)