title: Preliminary evidence for multiple etiologies in autism.
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005602:France; D005767:Gastrointestinal Diseases / Q000150:complications; D006801:Humans; D008297:Male; D008423:Maternal Age; D011247:Pregnancy; D011248:Pregnancy Complications; D011687:Purines / Q000032:analysis
chemical_list: D011687:Purines; C030985:purine