Comparison of repetitive transcranial magnetic stimulation and electroconvulsive therapy in unipolar non-psychotic refractory depression: a randomized, single-blind study - Rosa, Moacyr Alexandro; Gattaz, Wagner Farid; Pascual-Leone, Alvaro; Fregni, Felipe; Rosa, Marina Odebrecht; Rumi, Demetrio Ortega; Myczkowski, Martin; Silva, Maria Fernanda; Mansur, Carlos; Rigonati, Sergio Paulo; Teixeira, Manoel Jacobsen (International Journal of Neuropsychopharmacology, 2006)