Rob Stein on the latest in a series of reports by the "Cochrane Collaboration, an independent nonprofit group based in Oxford", "on various aspects of medicine and dentistry that have never been subjected to careful evaluation. As part of a growing movement toward "evidence-based medicine," the Cochrane organization and others are beginning to evaluate many long-accepted and widely used procedures and treatments that have never been proven effective.

But at least a couple of studies suggest that acupuncture may be effective in certain treatments. Like this study.