Technical note: Preliminary surgical experience with a new implantable epicranial stimulation device for chronic focal cortex stimulation in drug-resistant epilepsy - Coenen, V A; Jarc, N; Hirsch, M; Reinacher, P C; Steinhoff, B J; Bast, T; Schulze-Bonhage, A; Sajonz, BE A (Acta Neurochir (Wien), 2024)