Iwai M, Koyama S, Takeda K, Hirakawa Y, Motoya I, Sakurai H, Kanada Y, Okada Y, Kawamura N, Kawamura M, Tanabe S. Effect of Lee Silverman Voice Treatment® BIG on the major motor symptoms in patients with moderate Parkinson’s disease: an observational study. Gerontology and Geriatrics [Internet]. 2024May27 [cited 2024Sep.8];72(2):76-2. Available from: https://www.jgerontology-geriatrics.com/article/view/711