title: Reply: To PMID 20648666.
authors: UCL Institute of Child Health, London, Portex Unit: Respiratory Physiology and Medicine, London, UK. s.lum@ich.ucl.ac.uk.
authors: Sooky
authors: S
authors: Lum
authors: Janet
authors: J
authors: Stocks
mesh_terms: D003550:Cystic Fibrosis / Q000175:diagnosis*; D005260:Female; D005540:Forced Expiratory Flow Rates; D005541:Forced Expiratory Volume; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008297:Male