title: Question 1: efficacy of the ketogenic diet in difficult childhood epilepsies.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D055423:Diet, Ketogenic; D004827:Epilepsy / Q000178:diet therapy*; D019317:Evidence-Based Medicine / Q000379:methods; D006801:Humans; D007223:Infant; D016896:Treatment Outcome