1. Cochrane Austria, Department for Evidence-based Medicine and Evaluation, University for Continuing Education Krems, Krems, Austria, and Department of Family Medicine, Care and Public Health Research Institute, Maastricht University, Maastricht, the Netherlands (L.A.)
2. Cochrane Austria, Department for Evidence-based Medicine and Evaluation, University for Continuing Education Krems, Krems, Austria (G.W., A.D., A.T., A.C., E.P., I.K.)
3. Cochrane Austria, Department for Evidence-based Medicine and Evaluation, University for Continuing Education Krems, Krems, Austria, and RTI International, Research Triangle Park, North Carolina (G.G.).