Archives of Dermatology. "Long-Term Tetracycline Therapy for Acne," by Dr. Gordon C. Sauer, 1976-11, Box: 99, Folder: 6. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/205402 Accessed June 17, 2024.