1. Tripoliti E, Zrinzo L, Martinez-Torres I, Frost E, Pinto S, Foltynie T, et al. Effects of subthalamic stimulation on speech of consecutive patients with Parkinson disease. Neurology. 2011; 76(1): 80–6.
2. Sidtis JJ, Tagliati M, Alterman R, Sidtis D, Dhawan V, Eidelberg D. Therapeutic high-frequency stimulation of the subthalamic nucleus in Parkinson’s disease produces global increases in cerebral blood flow. J Cereb Blood Flow Metab. 2012; 32(1): 41–9.
3. Ramig LO, Sapir S, Countryman S, Pawlas AA, O’Brien C, Hoehn M, et al. Intensive voice treatment (LSVT®) for patients with Parkinson’s disease: a 2 year follow up. J Neurol Neurosurg Psychiatry. 2001; 71(4): 493–8.
4. Dromey C, Bjarnason S. A preliminary report on disordered speech with deep brain stimulation in individuals with Parkinson′ s disease. Park Dis. 2011; 2011(1): 796205.
5. Fenoy AJ, McHenry MA, Schiess MC. Speech changes induced by deep brain stimulation of the subthalamic nucleus in Parkinson disease: involvement of the dentatorubrothalamic tract. J Neurosurg. 2016; 126(6): 2017-27.