Efficacy of transcranial direct current stimulation on seizure control in patients with refractory epilepsy: a systematic review and meta-analysis of randomized controlled trials. - Hendi NI; AbuSammour Y; Khaled M; Mohamed AS; Amin AM; Fallaha MS; Kamel B; Helmy YNA; Hassan MAS; Meshref M (Neurosurgical review, 2025)