About the Authors

Jianhua Wu

Affiliation Centre for Environmental and Preventive Medicine, Barts and The London School of Medicine and Dentistry, University of London, London, United Kingdom

Shihua Zhu

Affiliation School of Public Health and Population Science, University of Birmingham, Birmingham, United Kingdom

Guiqing Lily Yao

Affiliation Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, United Kingdom

Mohammed A. Mohammed

Affiliation School of Public Health and Population Science, University of Birmingham, Birmingham, United Kingdom

Tom Marshall

t.p.marshall@bham.ac.uk

Affiliation School of Public Health and Population Science, University of Birmingham, Birmingham, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TM. Led the data analysis: JW. Contributed to data analysis: SZ. Contributed to overview of data analysis: GLY MAM. Led the writing of the manuscript along with TM: JW. Contributed to writing of the manuscript: SZ MAM GLY.