About the Authors

Chris Power

christine.power@ucl.ac.uk

Affiliation Population, Policy and Practice, UCL Institute of Child Health, University College London, WC1N 1EH, London, United Kingdom

Snehal M. Pinto Pereira

Affiliation Population, Policy and Practice, UCL Institute of Child Health, University College London, WC1N 1EH, London, United Kingdom

Leah Li

Affiliation Population, Policy and Practice, UCL Institute of Child Health, University College London, WC1N 1EH, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CP. Performed the experiments: SMPP LL. Analyzed the data: SMPP LL. Contributed reagents/materials/analysis tools: CP SMPP LL. Wrote the paper: CP.