"Effect of chronic cocaine on cardiovascular responses to norepinephrine and acetylcholine in the conscious rat" - W.R. Dixon, A. Chang, E. Judd, H. Carrillo and H. Simms, Box: 20, Folder: 13. Personal Papers of Walter R. Dixon, PP 401. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/255650 Accessed October 05, 2024.