Dykstra, Allyson D., Scott G. Adams, and Mandar Jog. “Lingual Protrusion and Elevation in Lingual Dystonia: A Hypothesis”. Canadian Acoustics 33, no. 3 (September 1, 2005): 98–99. Accessed September 21, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1763.