1. The critically appraised topic: A practical approach to learning critical appraisal;Sauve;Ann Roy Coll Phys Surg Canada,1995
2. Evidence-based medicine: How to practice and teach EBM;Sackett,1997
3. User’s guides to the medical literature;Guyatt;JAMA,1993
4. An electronic CAT maker is currently under construction and will soon become available on the website of the Centre for Evidence Based Medicine (http://cebm.jr2.ox.ac.uk).