[How to change physicians' practice--health services research with the knowledge-performance gap on focus]

How can the knowledge-performance gap be bridged? The discrepancy between our scientific knowledge on the one hand and its inadequate application in everyday practice on the other remains a major challenge for implementation research. Looking back on ten years of Health Services Research and acknowledging the achievements of educational research we have gained access to a variety of research findings and tools describing how physicians'--and other health professionals'--behavior and performance in medical care may be influenced. The time has come for testing and evaluating them.