About the Authors

Anne C. Skeldon

a.skeldon@surrey.ac.uk

Affiliation Department of Mathematics, University of Surrey, Guildford, Surrey, United Kingdom

Derk-Jan Dijk

Affiliation Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom

Gianne Derks

Affiliation Department of Mathematics, University of Surrey, Guildford, Surrey, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ACS DJD GD. Performed the experiments: ACS. Analyzed the data: ACS. Contributed reagents/materials/analysis tools: ACS. Wrote the paper: ACS DJD GD.