Correction: Scientific Value of Systematic Reviews: Survey of Editors of Core Clinical Journals

The correct affiliations list is: 1 German Cochrane Center, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg, Freiburg, Germany, 2 Pediatric Hematology and Oncology, Center for Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany, 3 Department of Surgery, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany, 4 London School of Hygiene and Tropical Medicine, London, United Kingdom, 5 Cochrane Switzerland, IUMSP, University Hospital Lausanne, Lausanne, Switzerland The correct citation is: Performed the experiments, analyzed the data, and Other: Contributed substantially to collection of information (journal characteristics) on 118 core clinical journals and preparation/conduct of survey, Involved in collection/collation of survey results, Involved in descriptive analysis of data, Involved in writing of the manuscript and approved final manuscript.