title: Focal epilepsy: the problem, prevalence, and contributing factors.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004828:Epilepsies, Partial / Q000453:epidemiology / Q000235:genetics / Q000601:surgery; D004827:Epilepsy / Q000453:epidemiology; D005799:Genes, Dominant; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011612:Psychosurgery; D014481:United States