title: Mendelian randomization analysis demonstrates that low vitamin D is unlikely causative for pediatric asthma.
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa; Division of Pulmonary Medicine, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Erik B
authors.initials: EB
authors.lastname: Hysinger
authors.affiliation: Division of Endocrinology and Diabetes, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Roizen
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Frank D
authors.initials: FD
authors.lastname: Mentch
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Lyam
authors.initials: L
authors.lastname: Vazquez
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: John J
authors.initials: JJ
authors.lastname: Connolly
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Bradfield
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
authors.forename: Berta
authors.initials: B
authors.lastname: Almoguera
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa.
authors.forename: Patrick M
authors.initials: PM
authors.lastname: Sleiman
authors.affiliation: Division of Pulmonary Medicine, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa.
authors.forename: Julian L
authors.initials: JL
authors.lastname: Allen
authors.affiliation: Division of Endocrinology and Diabetes, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Levine
authors.affiliation: Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa; Division of Pulmonary Medicine, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa. Electronic address: hakonarson@email.chop.edu.
authors.forename: Hakon
authors.initials: H
authors.lastname: Hakonarson
mesh_terms: D001249:Asthma / Q000209:etiology* / Q000235:genetics*; D016022:Case-Control Studies; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D055106:Genome-Wide Association Study / Q000379:methods; D006801:Humans; D008297:Male; D057182:Mendelian Randomization Analysis; D014807:Vitamin D / Q000235:genetics*; D014808:Vitamin D Deficiency / Q000235:genetics*
chemical_list: D014807:Vitamin D