1. Homans J. A textbook of surgery, by John Homans... compiled from lectures and other writings of... members of the surgical department of the Harvard Medical School... with a special bibliographic index and with illustrations by Willard C Shephard. Baltimore: Charles C Thomas, 1931:967.
2. Banov L Jr. The Chester Beatty medical papyrus: the earliest known treatise completely devoted to anorectal diseases. Surgery 1965;58:1037–43.
3. Mettler CC: History of medicine: a correlative text, arranged according to subjects. Philadelphia: The Blakiston Company, 1947;806–919.
4. Banov L Jr. George Bushe, author of the first American book on proctology. Dis Colon Rectum 1973;16:553–60.
5. Massengill SE. A sketch of medicine and surgery. Bristol: SE-Massengill Company, 1943:89.