About the Authors
- Calvin K. Y. Cheng
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Affiliation School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
- Hing Channarith
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Affiliation The Cambodian Children’s Advocacy Foundation, Phnom Penh, Cambodia
- Benjamin J. Cowling
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* E-mail: bcowling@hku.hk
Affiliation School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
Competing Interests
BJC has received research funding from MedImmune Inc., and consults for Crucell NV. BJC is an Academic Editor for PLOS ONE. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials. The authors report no other potential conflicts of interest.
Author Contributions
Conceived and designed the experiments: CKYC. Analyzed the data: CKYC. Wrote the paper: CKYC. Critically revised the manuscript and approved the final version: HC BJC.