1. The romance of proctology;Blanchard,1938
2. Treatises of fistula-in-ano. D’Arcy Power, Editor. English text society. Original series no. 139;Arderne,1910
3. Storia illustrata della proctologia;Pluchinotta,1992
4. St Mark's Hospital. A social history of a specialised hospital;Greenshaw,1985
5. Anal fistula: surgical evaluation and management,1996