Mechanical chest physiotherapy.
D000293:Adolescent; D000328:Adult; D002648:Child; D003550:Cystic Fibrosis / Q000628:therapy*; D004322:Drainage; D006801:Humans; D010474:Percussion / Q000295:instrumentation*; D026741:Physical Therapy Modalities / Q000379:methods*; D013183:Sputum