Application and outcomes of therapy combining transcranial direct current stimulation and virtual reality: a systematic review - Massetti, Thais; Crocetta, Tânia Brusque; Silva, Talita Dias da; Trevizan, Isabela Lopes; Arab, Claudia; Caromano, Fátima Aparecida; Monteiro, Carlos Bandeira de Mello (Disability and Rehabilitation : Assistive Technology, 2017)