title: Questioning flutter therapy.
authors.forename: G
authors.initials: G
authors.lastname: Ntoumenopoulos
mesh_terms: D002648:Child; D003550:Cystic Fibrosis / Q000534:rehabilitation*; D015916:Drainage, Postural; D006801:Humans; D012107:Research Design; D012138:Respiratory Therapy / Q000295:instrumentation; D016896:Treatment Outcome