Klopfenstein M. Speech naturalness ratings and perceptual correlates of highly natural and unnatural speech in hypokinetic dysarthria secondary to Parkinson’s disease. JIRCD [Internet]. 2016 Jun. 21 [cited 2024 Jun. 17];7(1):123-46. Available from: https://journal.equinoxpub.com/JIRCD/article/view/12011