Lawson, D Screening for cystic fibrosis by measurement of unstimulated parotid saliva sodium levels. [electronic resource] - Archives of disease in childhood Dec 1967 - 689-90 p. digital Publication Type: Journal Article ISSN: 1468-2044 Standard No.: 10.1136/adc.42.226.689 doi Subjects--Topical Terms: Cystic Fibrosis--diagnosisHumansInfantInfant, NewbornParotid Gland--metabolismSaliva--analysisSodium--analysis