G. Deuschl, P. Bain, and M. Brin, Consensus statement of the movement disorder society on tremor, Mov Disord Off J Mov Disord Soc, vol.13, pp.2-23, 1998.

J. Jankovic, Essential tremor: a heterogenous disorder, Mov Disord Off J Mov Disord Soc, vol.17, issue.4, pp.638-682, 2002.

J. P. Hubble, K. L. Busenbark, R. Pahwa, K. Lyons, and W. C. Koller, Clinical expression of essential tremor: effects of gender and age, Mov Disord Off J Mov Disord Soc, vol.12, issue.6, pp.969-72, 1997.

F. Phibbs, J. Y. Fang, M. K. Cooper, D. P. Charles, T. L. Davis et al., Prevalence of unilateral tremor in autosomal dominant essential tremor, Mov Disord Off J Mov Disord Soc, vol.24, issue.1, pp.108-119, 2009.

V. Chandran and P. K. Pal, Essential tremor: beyond the motor features, Parkinsonism Relat Disord, vol.18, issue.5, pp.407-420, 2012.

E. D. Louis, Essential tremor: evolving clinicopathological concepts in an era of intensive post-mortem enquiry, Lancet Neurol, vol.9, issue.6, pp.613-635, 2010.

G. Kuhlenbäumer, F. Hopfner, and G. Deuschl, Genetics of essential tremor: meta-analysis and review, Neurology, vol.82, issue.11, pp.1000-1007, 2014.

N. D. Merner, S. L. Girard, H. Catoire, C. V. Bourassa, V. V. Belzil et al., Exome sequencing identifies FUS mutations as a cause of essential tremor, Am J Hum Genet, vol.91, issue.2, pp.313-322, 2012.

F. J. Jiménez-jiménez, E. García-martín, O. Lorenzo-betancor, P. Pastor, H. Alonso-navarro et al., LINGO1 and risk for essential tremor: results of a meta-analysis of rs9652490 and rs11856808, J Neurol Sci, vol.317, issue.1-2, pp.52-59, 2012.

S. Thier, D. Lorenz, M. Nothnagel, C. Poremba, F. Papengut et al., Polymorphisms in the glial glutamate transporter SLC1A2 are associated with essential tremor, Neurology, vol.79, issue.3, pp.243-251, 2012.

S. Yu, C. Chen, Y. Chen, C. W. Chang, H. Chang et al., SLC1A2 variant is associated with essential tremor in Taiwanese population, PLoS ONE, vol.8, issue.8, p.71919, 2013.

U. Gulsuner, H. Gulsuner, S. Mercan, F. N. Onat, O. E. Walsh et al., Mitochondrial serine protease HTRA2 p.G399S in a kindred with essential tremor and Parkinson disease, Proc Natl Acad Sci, vol.111, issue.51, pp.18285-90, 2014.

M. Stamelou, G. Charlesworth, C. Cordivari, S. A. Schneider, G. Kägi et al., The phenotypic spectrum of DYT24 due to ANO3 mutations, Mov Disord Off J Mov Disord Soc, vol.29, issue.7, pp.928-962, 2014.

R. Elble, C. Comella, S. Fahn, M. Hallett, J. Jankovic et al., Reliability of a new scale for essential tremor, Mov Disord Off J Mov Disord Soc, vol.27, issue.12, pp.1567-1576, 2012.

E. Apartis, A. Blancher, W. G. Meissner, L. Guyant-maréchal, D. Maltête et al., FXTAS: new insights and the need for revised diagnostic criteria, Neurology, vol.79, issue.18, pp.1898-907, 2012.

N. R. Whaley, J. D. Putzke, Y. Baba, Z. K. Wszolek, and R. J. Uitti, Essential tremor: phenotypic expression in a clinical cohort, Parkinsonism Relat Disord, vol.13, issue.6, pp.333-342, 2007.

F. Hopfner, G. Stevanin, S. H. Müller, E. Mundwiller, M. Bungeroth et al., The impact of rare variants in FUS in essential tremor, Mov Disord Off J Mov Disord Soc, vol.30, issue.5, pp.721-725, 2015.

J. S. Lou and J. Jankovic, Essential tremor: clinical correlates in 350 patients, Neurology, vol.41, issue.2, pp.234-242, 1991.

F. Hopfner, T. Erhart, K. Knudsen, D. Lorenz, S. A. Schneider et al., Testing for alcohol sensitivity of tremor amplitude in a large cohort with essential tremor, Parkinsonism Relat Disord, vol.21, pp.848-51, 2015.

R. J. Elble, Essential tremor frequency decreases with time, Neurology, vol.55, issue.10, pp.1547-51, 2000.

W. Chuang, C. Lu, Y. Huang, and R. Chen, Clinical characteristics of essential tremor in Taiwan: an exploratory-comparative study, Eur J Neurol Off J Eur Fed Neurol Soc, vol.19, issue.1, pp.135-176, 2012.

O. Cohen, S. Pullman, E. Jurewicz, D. Watner, and E. D. Louis, Rest tremor in patients with essential tremor: prevalence, clinical correlates, and electrophysiologic characteristics, Arch Neurol mars, vol.60, issue.3, pp.405-415, 2003.

M. T. Minen and E. D. Louis, Emergence of Parkinson's disease in essential tremor: a study of the clinical correlates in 53 patients, Mov Disord Off J Mov Disord Soc, vol.23, issue.11, pp.1602-1607, 2008.

F. Hopfner, S. H. Müller, D. Lorenz, S. Appenzeller, S. Klebe et al., Mutations in HTRA2 are not a common cause of familial classic ET, Mov Disord Off J Mov Disord Soc, vol.30, issue.8, pp.1149-50, 2015.

C. Tzoulis, T. Zayats, P. M. Knappskog, B. Müller, J. P. Larsen et al., HTRA2 p.G399S in Parkinson disease, essential tremor, and tremulous cervical dystonia, Proc Natl Acad Sci, vol.112, issue.18, p.2268, 2015.

G. Deuschl, J. Raethjen, H. Hellriegel, and R. Elble, Treatment of patients with essential tremor, Lancet Neurol, vol.10, issue.2, pp.148-61, 2011.