Quotation: "Evidence-based medicine (EBM) is an approach to health care that promotes the collection, interpretation, and integration of valid, important and applicable patient-reported, clinician-observed, and research-derived evidence. The best available evidence, moderated by patient circumstances and preferences, is applied to improve the quality of clinical judgments." Source: McKibbon, K.A. et al. (1995) The medical literature as a resource for evidence based care. Working Paper from the Health Information Research Unit, McMaster University, Ontario, Canada.