Antenatal Thyroid Screening and Childhood Cognitive Function

From the Centre for Endocrine and Diabetes Sciences, Cardiff School of Medicine (J.H.L., R.R., A.B.P.); the Department of Child Psychology, St. David’s Hospital (S.C., R.P.); and the Department of Medical Biochemistry, University Hospital of Wales (R.J.) — all in Cardiff, United Kingdom; Wolfson Institute of Preventive Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London (J.P.B., L.M.G., M.J., N.J.W.); and Azienda Ospedaliera Ospedale Infantile Regina Margherita– Sant’Anna, Turin, Italy (A.M., E.C., V.G., M.P., D.D.). Address reprint requests to Dr. Lazarus at the Centre for Endocrine and Diabetes Sciences, Cardiff University School of Medicine, Heath Park, Cardiff, Wales CF14 4XN, United Kingdom, or at [email protected].