Hale, Jaime E Newborn screening showing decreasing incidence of cystic fibrosis. [electronic resource] - The New England journal of medicine Feb 2008 - 973-4 p. digital Publication Type: Letter ISSN: 1533-4406 Standard No.: 10.1056/NEJMc0707530 doi Subjects--Topical Terms: Cystic Fibrosis--diagnosisGenotypeHumansInfant, NewbornMassachusetts--epidemiologyNeonatal Screening