title: Pacing the marathon: rate of decline of pulmonary function in cystic fibrosis.
authors.forename: Pamela B
authors.initials: PB
authors.lastname: Davis
mesh_terms: D000293:Adolescent; D002648:Child; D015897:Comorbidity; D003550:Cystic Fibrosis / Q000453:epidemiology* / Q000503:physiopathology; D018450:Disease Progression; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D011379:Prognosis; D012129:Respiratory Function Tests; D012720:Severity of Illness Index; D016019:Survival Analysis; D013997:Time Factors