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Newborn Infant
Neonatal Screening
Blood Specimen Collection
Specimen Handling
Tandem Mass Spectrometry
Radioimmunoassay
Dried Blood Spot Testing
Reference Standards
Apolipoproteins B
Apolipoprotein A-I
Apolipoproteins A
Heptanoates
HIV Antibodies
Quality Control
United States
Laboratories
Pregnancy
Calibration
Quality Assurance, Health Care
Drug Stability
Co-Publications
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