COSMOS-E: Guidance on conducting systematic reviews and meta-analyses of observational studies of etiology

• Olaf M. Dekkers ,

  * E-mail: o.m.dekkers@lumc.nl

  Affiliations Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands, Department of Clinical Endocrinology and Metabolism, Leiden University Medical Centre, Leiden, the Netherlands, Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark

  http://orcid.org/0000-0002-1333-7580

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• Jan P. Vandenbroucke,

  Affiliations Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands, Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

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• Myriam Cevallos,

  Affiliation Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland

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• Andrew G. Renehan,

  Affiliation Manchester Cancer Research Centre, NIHR Manchester Biomedical Research Centre, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom

  http://orcid.org/0000-0002-9115-4405

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• Douglas G. Altman †,

  † Deceased.

  Affiliation Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom

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• Matthias Egger

  Affiliations Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland, Centre for Infectious Diseases Epidemiology and Research (CIDER), School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa

  http://orcid.org/0000-0001-7462-5132

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