title: Newborn screening by tandem mass spectrometry: a new era.
authors.forename: H L
authors.initials: HL
authors.lastname: Levy
mesh_terms: D001800:Blood Specimen Collection; D005189:False Positive Reactions; D006801:Humans; D007231:Infant, Newborn; D013058:Mass Spectrometry / Q000379:methods*; D015997:Neonatal Screening / Q000379:methods*; D010661:Phenylketonurias / Q000097:blood