About the Authors

Edward Fottrell

Affiliations Institute for Global Health, UCL Institute of Child Health, London, United Kingdom, Umeå Centre for Global Health Research, Umeå University, Umeå, Sweden

David Osrin

d.osrin@ucl.ac.uk

Affiliation Institute for Global Health, UCL Institute of Child Health, London, United Kingdom

Competing Interests

The authors have no competing interests to declare.

Author Contributions

Wrote the first draft of the manuscript: EF DO. Contributed to the writing of the manuscript: EF DO. ICMJE criteria for authorship read and met: EF DO.