About the Authors

Yang Gao

Affiliation The J C School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China

Liping Li

Affiliation Injury Prevention Research Center, Medical College of Shantou University, Shantou, China

Emily Y. Y. Chan

Affiliation The J C School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China

Joseph Lau

Affiliation The J C School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China

Sian M. Griffiths

siangriffiths@cuhk.edu.hk

Affiliation The J C School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SMG JL YG. Performed the experiments: LL YG. Analyzed the data: YG JL EYYC. Contributed reagents/materials/analysis tools: JL YG. Wrote the paper: YG EYYC LL JL SMG.