title: Sibling Comparisons and Confounding in Autism Epidemiological Studies--Reply.
authors.affiliation: The Irish Centre for Fetal and Neonatal Translational Research (INFANT), Department of Obstetrics and Gynaecology, University College Cork, Cork, Ireland.
authors.forename: Eileen A
authors.initials: EA
authors.lastname: Curran
authors.affiliation: The Irish Centre for Fetal and Neonatal Translational Research (INFANT), Department of Obstetrics and Gynaecology, University College Cork, Cork, Ireland.
authors.forename: Louise C
authors.initials: LC
authors.lastname: Kenny
authors.affiliation: The Irish Centre for Fetal and Neonatal Translational Research (INFANT), Department of Obstetrics and Gynaecology, University College Cork, Cork, Ireland2Department of Epidemiology and Public Health, University College Cork, Cork, Ireland.
authors.forename: Ali S
authors.initials: AS
authors.lastname: Khashan
mesh_terms: D000067877:Autism Spectrum Disorder / Q000453:epidemiology*; D002585:Cesarean Section / Q000706:statistics & numerical data*; D017558:Elective Surgical Procedures / Q000706:statistics & numerical data*; D005113:Extraction, Obstetrical / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D035781:Siblings