About the Authors

Maria T. Moreira

Affiliation Instituto Superior de Saúde do Alto Ave, Póvoa de Lanhoso, Braga, Portugal

Reza Oskrochi

Affiliation Medical Statistics Programme, Oxford Brookes University, Oxford, Oxfordshire, United Kingdom

David R. Foxcroft

david.foxcroft@brookes.ac.uk

Affiliation Department of Psychology, Social Work and Public Health, Oxford Brookes University, Oxford, Oxfordshire, United Kingdom

Competing Interests

MTM and RO declare no competing interests. DRF declares that his Department has received funding from the alcohol industry for prevention projects, and that he is a Trustee of the alcohol-industry funded Drinkaware Trust. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MTM DRF. Performed the experiments: MTM. Analyzed the data: RO DRF MTM. Wrote the paper: DRF MTM RO.