About the Authors

Ian P. Sinha

iansinha@liv.ac.uk

Affiliation University of Liverpool, Alder Hey Children's Hospital, Liverpool, United Kingdom

Rosalind L. Smyth

These authors share joint last authorship.

Affiliation University of Liverpool, Alder Hey Children's Hospital, Liverpool, United Kingdom

Paula R. Williamson

These authors share joint last authorship.

Affiliation Department of Biostatistics, Faculty of Medicine, University of Liverpool, Liverpool, United Kingdom

Competing Interests

RLS is a member of the PLoS Board of Directors.

Author Contributions

ICMJE criteria for authorship read and met: IPS RLS PRW. Agree with the manuscript's results and conclusions: IPS RLS PRW. Designed the experiments/the study: IPS RLS PRW. Analyzed the data: IPS PRW. Collected data/did experiments for the study: IPS PRW. Wrote the first draft of the paper: IPS. Contributed to the writing of the paper: IPS RLS PRW. Conceived the initial idea for the review: PRW.