Despite technological and interpretative advances. the non-invasive modalities used for pre-surgical evaluation of patients with drug-resistant epilepsy (DRE). fail to generate a concordant anatomo-electroclinical hypothesis for the location of the seizure onset zone in many patients. This requires chronic monitoring with intracranial electroencephalography (EEG). https://www.jalyttlers.shop/product-category/revolving-chopper/