"Effect of naloxone on blood pressure responses and plasma catecholamine levels following clonidine injection in conscious, unrestrained rats" - Andi Piang-Ling Chang, M. Dillard, W. R. Dixon, Box: 20, Folder: 11. Personal Papers of Walter R. Dixon, PP 401. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/255648 Accessed December 21, 2024.