About the Authors

Valentina Gallo

v.gallo@imperial.ac.uk

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom, Social and Environmental Health Research, London School of Hygiene and Tropical Medicine, London, United Kingdom

Matthias Egger

Affiliation Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Valerie McCormack

Affiliation International Agency for Research on Cancer (IARC) Lyon, France

Peter B. Farmer

Affiliation Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester, United Kingdom

John P. A. Ioannidis

Affiliations Stanford Prevention Research Centre, Stanford University School of Medicine, Stanford, California, United States of America, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece

Micheline Kirsch-Volders

Affiliation Laboratory for Cell Genetics, Vrije Universiteit Brussel, Brussels, Belgium

Giuseppe Matullo

Affiliations HuGeF Human Genetics Foundation, Turin, Italy, Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy

David H. Phillips

Affiliation Institute of Cancer Research, Sutton, United Kingdom

Bernadette Schoket

Affiliation National Institute of Environmental Health, Budapest, Hungary

Ulf Stromberg

Affiliation Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden

Roel Vermeulen

Affiliation Institute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, Utrecht, the Netherlands

Christopher Wild

Affiliation International Agency for Research on Cancer (IARC) Lyon, France

Miquel Porta

Affiliation Institut Municipal d'Investigacio Medica (IMIM), Universitat Autonoma de Barcelona, Barcelona, Spain

Paolo Vineis

Affiliations HuGeF Human Genetics Foundation, Turin, Italy, MRC-HPA Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom

Competing Interests

JPAI is a member of the PLoS Medicine Editorial Board. All other authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VG ME JPAI US PV. Performed the experiments: VG ME VMC PBF JPAI MKV GM DHP BS US RV CW MP PV. Analyzed the data: VG ME VMC PBF JPAI MKV GM DHP BS US RV CW MP PV. Wrote the first draft of the manuscript: VG ME VMC JPAI US MP PV. Contributed to the writing of the manuscript: VG ME VMC PBF JPAI MKV GM DHP BS US RV CW MP PV. ICMJE criteria for authorship read and met: VG ME VMC PBF JPAI MKV GM DHP BS US RV CW MP PV. Agree with manuscript results and conclusions: VG ME VMC PBF JPAI MKV GM DHP BS US RV CW MP PV.