Higuchi et. al, "Salicylate-Promoted Permeation of Cefoxitin, Insulin and Phenylalanine Across Red Cell Membrane. Possible Mechanism,", 1984, Box: 11, Folder: 92. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124726 Accessed January 17, 2025.