title: Research in infantile autism: a methodological problem in using language comprehension as the basis for selecting matched controls.
mesh_terms: D000293:Adolescent; D001321:Autistic Disorder / Q000523:psychology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007802:Language; D007807:Language Tests; D008297:Male; D012107:Research Design; D012737:Sex Factors