title: Screening for cystic fibrosis by measurement of unstimulated parotid saliva sodium levels.
mesh_terms: D003550:Cystic Fibrosis / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010306:Parotid Gland / Q000378:metabolism; D012463:Saliva / Q000032:analysis*; D012964:Sodium / Q000032:analysis*
chemical_list: D012964:Sodium