Higuchi et. al, "Enhanced Bioavailability of Insulin after Rectal Administration with Enamine as Adjuvant in Depancreatized Dogs,", 1985

Higuchi et. al, "Enhanced Bioavailability of Insulin after Rectal Administration with Enamine as Adjuvant in Depancreatized Dogs,", 1985, Box: 10, Folder: 117. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124541 Accessed December 25, 2025.