Evaluation of a programming algorithm for deep brain stimulation in dystonia used in a double-blind, sham-controlled multicenter study oleh Frank Steigerwald, Anna Dalal Kirsch, Andrea A. Kühn, Andreas Kupsch, Joerg Mueller, Wilhelm Eisner, Günther Deuschl, Daniela Falk, Alfons Schnitzler, Inger Marie Skogseid, Juliane Vollmer-Haase, Chi W. Ip, Volker Tronnier, Jan Vesper, Markus Naumann, Jens Volkmann, for the DBS study group for dystonia