1. The ‘McMaster philosophy’: an approach to medical education;Neufeld;J Med Educ,1974
2. Clinical problem-solving by medical students: a cross-sectional and longitudinal analysis;Neufeld;Med Educ,1981
3. Problem-based learning: an approach to medical education;Barrows,1980
4. Problem-based learning: rationale and description;Schmidt;Med Educ,1983
5. How to Design a Problem-based Curriculum for the Preclinical Years;Barrows,1985