Cochrane Reviews are systematic reviews of primary research in human health care and health policy, and are internationally recognized as the highest standard in evidence-based health care resources. They investigate the effects of interventions for prevention, treatment, and rehabilitation. They also assess the accuracy of a diagnostic test for a given condition in a specific patient group and setting. Cochrane Reviews are peer reviewed and dynamic; they are adapted regularly to incorporate new research. In Switzerland, Cochrane reviews are freely available.