Changes in Heart Rate Variability after Transcranial Direct Current Stimulation in Patients with Refractory Epilepsy. - Elodie Múrias Lopes; Linus van Rafelghem; Duarte M. Dias; Márcia C. Nunes; Mirjam Hordt; Soheyl Noachtar; Elisabeth Kaufmann; João P. S. Cunha (NER, 2021)