Metabolic Positron Emission Tomography Response to Gamma Knife of the Ventral Intermediate Nucleus in Essential Tremor. Issue 6 (1st June 2019) - Verger, Antoine; Witjas, Tatiana; Carron, Romain; Eusebio, Alexandre; Boutin, Emmanuelle; Azulay, Jean-Philippe; Regis, Jean; Guedj, Eric