About the Authors
- Oon Tek Ng
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* E-mail: oontek@gmail.com
Affiliation Department of Infectious Disease, Tan Tock Seng Hospital, Singapore
- Angela L. Chow
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Affiliations Department of Clinical Epidemiology, Tan Tock Seng Hospital, Singapore, Department of Epidemiology and Public Health, National University of Singapore, Singapore
- Vernon J. Lee
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Affiliations Department of Clinical Epidemiology, Tan Tock Seng Hospital, Singapore, Department of Epidemiology and Public Health, National University of Singapore, Singapore
- Mark I. C. Chen
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Affiliations Department of Clinical Epidemiology, Tan Tock Seng Hospital, Singapore, Department of Epidemiology and Public Health, National University of Singapore, Singapore
- Mar Kyaw Win
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Affiliation Department of Clinical Epidemiology, Tan Tock Seng Hospital, Singapore
- Hiok Hee Tan
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Affiliation Department of Sexually Transmitted Infection Control, National Skin Centre, Singapore
- Arlene Chua
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Affiliation Department of Infectious Disease, Tan Tock Seng Hospital, Singapore
- Yee Sin Leo
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Affiliation Department of Infectious Disease, Tan Tock Seng Hospital, Singapore
Competing Interests
The authors have the following interests: V J Lee reported receipt of GlaxoSmithKline funding for unrelated research. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.
Author Contributions
Conceived and designed the experiments: OTN ALC VJL MICC YSL. Performed the experiments: MKW HHT AC. Analyzed the data: OTN ALC VJL MICC. Contributed reagents/materials/analysis tools: OTN ALC VJL MICC MKW HHT AC YSL. Wrote the paper: OTN ALC VJL MICC. Critical revision of the manuscript for important intellectual content: OTN ALC VJL MICC MKW HHT AC YSL Statistical analysis: OTN Obtaining funding: OTN VJL Supervision: OTN ALC MKW HHT AC YSL.