Safety and efficacy of transcranial direct current stimulation in upper extremity rehabilitation after tetraplegia: protocol of a multicenter randomized, clinical trial.

Arora T, O'Laughlin K, Potter-Baker K, Kirshblum S, Kilgore K, Forrest GF, Bryden AM, Wang X, Henzel MK, Li M, Perlic K, Richmond MA, Pundik S, Bethoux F, Frost F, Plow EB.