title: Reduced natural killer cell activity in autism.
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D003602:Cytotoxicity, Immunologic; D005260:Female; D006801:Humans; D007108:Immune Tolerance; D007694:Killer Cells, Natural / Q000276:immunology*; D008297:Male