Flutter flap.
Bauer
M L
ML
D003362:Cost-Benefit Analysis; D003550:Cystic Fibrosis / Q000503:physiopathology / Q000534:rehabilitation*; D015916:Drainage, Postural / Q000191:economics / Q000295:instrumentation; D006801:Humans; D012129:Respiratory Function Tests; D012138:Respiratory Therapy / Q000191:economics / Q000295:instrumentation*