Langguth, B, De Ridder, D, Dornhoffer JL, Eichhammer, P, Folmer, RL, Frank, E, Fregni, F, Gerloff, C, Khedr, E, Kleinjung, T, Landgrebe, M, Lee, S, Lefaucheur, J-P, Londero, A, Marcondes, R, Moller, AR, Pascual-Leone, A, Plewnia, C, Rossi, S, Sanchez, T, Sand, P, Schlee, W, Steffens, T, Van de Heyning, P, Hajak, G. Controversy: Does rTMS/tDCS show efficacy in treating tinnitus patients?. Brain Stimulation. 2008; 1(192):192-205.