title: Why associations among traits do not necessarily indicate their common etiology: a comment on the Geschwind-Behan-Galaburda model.
authors.affiliation: Department of Speech-Language-Hearing, University of Kansas, Lawrence 66047, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Gilger
authors.forename: B F
authors.initials: BF
authors.lastname: Pennington
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D001327:Autoimmune Diseases / Q000235:genetics / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D015897:Comorbidity; D002658:Developmental Disabilities / Q000235:genetics / Q000503:physiopathology; D004292:Dominance, Cerebral / Q000235:genetics / Q000502:physiology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008959:Models, Neurological; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012307:Risk Factors; D013739:Testosterone / Q000502:physiology*
chemical_list: D013739:Testosterone