1. Basic surgical clerkships;Zelenock,1986
2. The effect of a well defined curriculum on cognitive performance;Hassett;Focus Surg Educ,1987
3. Clinical course performance predictor in undergraduate surgery (a pilot study);Hassett;Focus Surg Educ,1986
4. Required curricular time dedicated to the surgical sciences in American medical schools;Hassett;Focus Surg Educ,1985
5. Problem-based self directed learning;Barrows;JAMA,1983