Letter by El-Battrawy et al Regarding Article, "The Effects of Public Access Defibrillation on Survival After Out-of-Hospital Cardiac Arrest: A Systematic Review of Observational Studies"
1 Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim University of Heidelberg, Mannheim, Germany. German Center for Cardiovascular Research (DZHK), Partner Site, Heidelberg-Mannheim, Germany.