Gordh J:r Torsten, and Hartvig Per. “Cerebrospinal Fluid and Plasma Concentrations of Clonidine in Pigs After Epidural, Intravenous and Intramuscular Administration”. Upsala Journal of Medical Sciences 91, no. 3 (September 1, 1986): 311-315. Accessed April 24, 2024. https://ujms.net/index.php/ujms/article/view/6917.