1. Medical education in the United States and Canada. A report to the Carnegie Foundation for the advancement of teaching;Flexner,1910
2. Aprendizaje basado en problemas;Morales;Theoria,2004
3. Problem-based learning as an educational strategy;Bouhuijs,1993
4. A taxonomy of problem-based learning methods;Barrows;Med Educ,1986
5. The Edinburgh Declaration;World Federation for Medical Education;Med Educ,1988