About the Authors

Georgia Salanti

Affiliation Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece

Cinzia Del Giovane

Affiliation Statistics Unit, Department of Clinical and Diagnostic Medicine and Public Health, University of Modena and Reggio Emilia, Modena, Italy

Anna Chaimani

Affiliation Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece

Deborah M. Caldwell

Affiliation School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

Julian P. T. Higgins

julian.higgins@bristol.ac.uk

Affiliations School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom, Centre for Reviews and Dissemination, University of York, York, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GS CDG AC DMC JPTH. Performed the experiments: GS CDG AC DMC JPTH. Analyzed the data: CDG AC. Contributed reagents/materials/analysis tools: GS CDG AC. Wrote the paper: GS CDG AC DMC JPTH.