Mendelian randomization analysis demonstrates that low vitamin D is unlikely causative for pediatric asthma

Affiliations

• ¹ Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa; Division of Pulmonary Medicine, the Children's Hospital of Philadelphia, Philadelphia, Pa.
• ² Division of Endocrinology and Diabetes, the Children's Hospital of Philadelphia, Philadelphia, Pa.
• ³ Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa.
• ⁴ Center for Applied Genomics, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa.
• ⁵ Division of Pulmonary Medicine, the Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pa.
• ⁶ 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.
• ⁷ 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.