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://foldlyers.shop/product-category/2-5-3-5-6-5mm/