About the Authors
- Theodore M. Hammett
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* E-mail: ted_hammett@abtassoc.com
Affiliation Abt Associates Inc., Cambridge, Massachusetts, United States of America
- Don C. Des Jarlais
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Affiliation Beth Israel Medical Center, New York, New York, United States of America
- Ryan Kling
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Affiliation Abt Associates Inc., Cambridge, Massachusetts, United States of America
- Binh Thanh Kieu
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Affiliation Abt Associates Inc., Hanoi, Vietnam
- Janet M. McNicholl
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Affiliation DHAP, Laboratory Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- Punneeporn Wasinrapee
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Affiliation Thai Ministry of Public Health-US CDC Collaboration, Nonthaburi, Thailand
- J. Stephen McDougal
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Affiliation National Center for HIV/AIDS, STDs, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- Wei Liu
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Affiliation Guangxi Center for Disease Control, Nanning, China
- Yi Chen
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Affiliation Guangxi Center for Disease Control, Nanning, China
- Donghua Meng
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Affiliation Ning Ming County Health Department, Ning Ming City (Guangxi), China
- Ngu Doan
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† Deceased.
Affiliation Abt Associates Inc., Ho Chi Minh City, Vietnam
- Tho Huu Nguyen
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Affiliation Lang Son Provincial HIV/AIDS Center, Lang Son City, Vietnam
- Quyen Ngoc Hoang
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Affiliation Ha Giang Provincial Health Services, Ha Giang City, Vietnam
- Tren Van Hoang
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Affiliation Ha Giang Provincial Health Services, Ha Giang City, Vietnam
Competing Interests
Authors TMH, RK, and BTK are employees of Abt Associates Inc., a for-profit, employee-owned research and consulting firm based in the U.S. This employment relationship does not involve any competing interests of any kind, including those related to patents, products in development, or marketed products, nor does this relationship alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: TMH DCDJ RK BTK WL YC DM ND THN QNH TVH. Performed the experiments: JMM PW. Analyzed the data: TMH RK BTK JMM JSM DCDJ. Wrote the paper: TMH DCDJ RK JMM.