title: Author's response.
authors.affiliation: Department of Pediatrics and Biochemistry and Molecular Biology, Saint Louis University School of Medicine and Cardinal Glennon Children's Medical Center, St Louis, MO.
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Teckman
mesh_terms: D004646:Emphysema / Q000517:prevention & control*; D006293:Health Promotion; D006801:Humans; D015997:Neonatal Screening; D000515:alpha 1-Antitrypsin / Q000097:blood*; D019896:alpha 1-Antitrypsin Deficiency / Q000175:diagnosis*
chemical_list: D000515:alpha 1-Antitrypsin