1. Clinical trials in general practice;Greenberg;BMJ,1991
2. Randomised controlled trials in general practice;Pringle;BMJ,1995
3. Applying the results of clinical trials to patients in general practice: perceived problems, strengths, assumptions, and challenges for the future;Fahey;Br J Gen Pract,1998
4. Application of evidence from randomised controlled trials to general pratice;Rosser;Lancet,1999
5. Randomised controlled trials in general practice: lessons from a failure;Tognoni;BMJ,1991