title: Introduction.
authors.affiliation: National Newborn Screening and Global Resource Center (NNSGRC), 3907 Galacia Drive, Austin, TX 78759; Department of Pediatrics, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229.
authors.forename: Bradford L
authors.initials: BL
authors.lastname: Therrell
mesh_terms: D059788:Dried Blood Spot Testing; D006801:Humans; D007231:Infant, Newborn; D015997:Neonatal Screening / Q000379:methods* / Q000639:trends; D011634:Public Health