Long-term follow-up of thalamic deep brain stimulation for essential tremor – patient satisfaction and mortality. - Børretzen, Mari Naumann; Bjerknes, Silje; Sæhle, Terje; Skjelland, Mona; Skogseid, Inger Marie; Toft, Mathias; Dietrichs, Espen (BMC Neurology, 2014)