About the Authors

Eric H. Y. Lau


Affiliation Department of Community Medicine and School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China

Calvin K. Y. Cheng
Dennis K. M. Ip
Benjamin J. Cowling

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EHYL BJC. Performed the experiments: EHYL CKYC BJC. Analyzed the data: EHYL BJC. Contributed reagents/materials/analysis tools: EHYL CKYC DKMI BJC. Wrote the paper: EHYL BJC. Critically reviewed content and approved final version: EHYL CKYC DKMI BJC.