About the Authors

Duc Anh Ha

ddha04@gmail.com

Affiliation Ministry of Health, Hanoi, Vietnam

Robert J. Goldberg

Affiliation Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America

Jeroan J. Allison

Affiliation Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America

Thang Hong Chu

Affiliation Thai Nguyen Department of Health, Thai Nguyen, Vietnam

Hoa L. Nguyen

Affiliations Institute of Population, Health and Development, Hanoi, Vietnam, Oxford University Clinical Research Unit, Hochiminh City, Vietnam

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DAH. Performed the experiments: DAH THC. Analyzed the data: HLN RJG. Wrote the paper: DAH. Designed the mock tables: DAH. Supported in data analysis, results, and discussion: HLN RJG JJA.