Higuchi et. al, "The Effects of Salicylate on the Rectal Absorption of Phenylalanine and Some Peptides, and the Effects of These Peptides on the Rectal Absorption of Cefoxitin and Cefmetazole,", 1984, Box: 10, Folder: 109. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124533 Accessed June 02, 2024.