title: [Paroxysmal syndrome and the severeness of the intellectual defect in Down's disease].
mesh_terms: D000293:Adolescent; D001247:Asthenia; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D008607:Intellectual Disability; D009043:Motor Activity; D012075:Remission, Spontaneous; D012640:Seizures
vernacular_title: Paroksizmal'nyĭ sindrom i glubina intellektual'nogo defekta pri bolezni Dauna.