Corrigendum to “Changes in Vowel Articulation with Subthalamic Nucleus Deep Brain Stimulation in Dysarthric Speakers with Parkinson's Disease”

In the paper titled “Changes in Vowel Articulation with Subthalamic Nucleus Deep Brain Stimulation in Dysarthric Speakers with Parkinson's Disease,” in Section 2.3.1, the authors cited incorrectly a study by Sapir and colleagues [10]. The correct reference should have been “S. Sapir, L. O. Ramig, J. L. Spielman, and C. Fox, ‘Formant centralization ratio: a proposal for a new acoustic measure of dysarthric speech,' Journal of Speech, Language and Hearing Research, vol. 53, no. 1, pp. 114–125, 2010. doi: 10.1044/1092-4388 (2009/08-0184).”