About the Authors

Paul Montgomery

paul.montgomery@spi.ox.ac.uk

Affiliation Centre for Evidence Based Intervention, University of Oxford, Oxford, Oxfordshire, United Kingdom

Caitlin R. Ryus

Affiliation Said Business School, University of Oxford, Oxford, Oxfordshire, United Kingdom

Catherine S. Dolan

Affiliation Said Business School, University of Oxford, Oxford, Oxfordshire, United Kingdom

Sue Dopson

Affiliation Said Business School, University of Oxford, Oxford, Oxfordshire, United Kingdom

Linda M. Scott

Affiliation Said Business School, University of Oxford, Oxford, Oxfordshire, United Kingdom

Competing Interests

The authors have read the journal's policy and have the following conflicts: pads were supplied by Proctor and Gamble. 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: PM CRR LMS CD SD. Performed the experiments: PM CRR LMS CD SD. Analyzed the data: PM CRR. Contributed reagents/materials/analysis tools: PM CRR. Wrote the paper: PM CRR. Commented on the paper: CD SD LMS.