title: Monitoring cystic fibrosis lung disease in clinical trials: is it time for a change?
authors.affiliation: Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
authors.forename: Harm A W M
authors.initials: HA
authors.lastname: Tiddens
authors.forename: Alan S
authors.initials: AS
authors.lastname: Brody
mesh_terms: D002986:Clinical Trials as Topic; D003550:Cystic Fibrosis / Q000175:diagnosis*; D006801:Humans; D008991:Monitoring, Physiologic