1. Regional variations in costs of inguinal hernia operations;Anonymous,1987
2. Costs of three common surgical procedures: 1987 update;Anonymous,1989
3. Cost, Risks, and Benefits of Surgery;Bunker,1977
4. Functional anatomy of the groin area as related to the classification and treatment of groin hernia;Casten;Am J Surg,1967
5. Does a practice need a gimmick to survive today;Crane,1986