Updated model of evidence-based practice that emphasizes the individual patient's unique presentation as a key consideration, with the clinician's expertise represented as the ability to effectively integrate the 3 components. Adapted from Evidence-Based Medicine, Clinical expertise in the era of evidence-based medicine and patient choice. Haynes RB, Devereaux PJ, Guyatt GH, 7(2):36-38, 2002, with permission from BMJ Publishing Group Ltd.