Tayebati, Seyed, et al. “New Route for Tizanidine Administration: A Pharmacokinetics and Light Microscope Autoradiography Study”. Italian Journal of Anatomy and Embryology, vol. 116, no. 2, Nov. 2011, p. 183, https://oajournals.fupress.net/index.php/ijae/article/view/4757.