1. The elective surgery second opinion program;Grafe;Ann. Surg.,1978
2. Program for Elective Surgical Second Opinion Evaluation Report: Preliminary Findings, January 1976 to August 1977;Joffe,1978
3. How much will second opinions cut patient loads?;Kirchner,1980
4. An update on second surgical opinion programs;Lance;Bull. Am. Coll. Surg.,1978
5. Effects of screening by consultants on recommended elective surgical procedures;McCarthy;N. Engl. J. Med.,1974