The most common definition of EBM is taken from Dr. David Sackett's article. "Evidence-based Medicine: What it is and what it isn't" (BMJ 1996 Jan 13; vol. 312 (7023), pp.71-2). EBM is "the conscientious, explicit and judicious use of current best evidence in making decisions about the care of the individual patient. It means integrating individual clinical expertise with the best available external clinical evidence from systematic research."
Best bets for locating evidence based practice reviews: