title: The authors reply.
authors: Respiratory Medicine, Royal Children's Hospital, Parkville, Victoria, Australia.
authors: John
authors: J
authors: Massie
authors: Lynn
authors: L
authors: Gillam
mesh_terms: D003550:Cystic Fibrosis / Q000175:diagnosis*; D004992:Ethics, Medical; D006801:Humans; D015997:Neonatal Screening