Author Affiliations: Centre for Clinical Epidemiology and Biostatistics, University of Newcastle, Hunter Medical Research Institute, and Department of General Medicine, John Hunter Hospital, Newcastle, Australia (Dr Attia); Department of Hygiene and Epidemiology, University of Ioannina, School of Medicine, Ioannina, Greece, and Center for Genetic Epidemiology and Modeling, Tufts Medical Center, Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts (Dr Ioannidis); Clinical Epidemiology Unit, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand (Dr Thakkinstian); Centre for Clinical Epidemiology and Biostatistics, University of Newcastle, Newcastle, Australia (Mr McEvoy); Division of Genetics, Hunter Area Pathology Service, John Hunter Hospital, New Lambton, Australia, and Centre for Information Based Medicine, Faculty of Health, University of Newcastle, Hunter Medical Research Institute, Newcastle, Australia (Dr Scott); Respiratory Epidemiology and Public Health, National Heart and Lung Institute, Imperial College, London, England (Dr Minelli); Department of Health Sciences, University of Leicester, Leicester, England (Dr Thompson); Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, Canada (Dr Infante-Rivard); and the Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada (Dr Guyatt).