title: Chest percussion: help or hindrance to postural drainage?
mesh_terms: D000293:Adolescent; D000328:Adult; D003550:Cystic Fibrosis / Q000628:therapy*; D004322:Drainage; D006801:Humans; D008297:Male; D010474:Percussion / Q000379:methods*; D011187:Posture; D012129:Respiratory Function Tests