1. Kopetzky SJ. The Surgery of the Ear. 2nd ed. Rebman; 1908:70-124. Accessed April 26, 2024. https://catalog.hathitrust.org/Record/001586358
2. Petit JL. Traité des maladies chirurgicales, et des opérations qui leur conviennent. UAB Libraries—Digital Exhibits. 1815. Accessed April 26, 2024. http://codex.library.uab.edu/omeka/items/show/43. English translation. https://collections.nlm.nih.gov/bookviewer?PID=nlm:nlmuid-2544006RX1-mvpart
3. Whiting F. The Modern Mastoid Operation. P. Blakiston’s Son & Co; 1905. Accessed April 26, 2024. https://babel.hathitrust.org/cgi/pt?id=uc1.c3456405&seq=55
4. Schwartze H. Die Chirurgischen Krankheiten Des Ohres. Ferdinand Enke; 1885:330-342. Accessed April 27, 2024. https://catalog.hathitrust.org/Record/009703003
5. Ballenger WL. Diseases of the Nose, Throat and Ear, Medical and Surgical. 3rd ed. Lea and Febiger; 1911:822-831. Accessed April 26, 2024. https://babel.hathitrust.org/cgi/pt?id=mdp.39015068021974&seq=7