About the Authors

Suwat Chariyalertsak

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Natthapol Kosachunhanan

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Pongpun Saokhieo

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Radchanok Songsupa

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Antika Wongthanee

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Chonlisa Chariyalertsak

Affiliation Ministry of Public Health, Chiang Mai Provincial Health Office, Chiang Mai, Thailand

Surasing Visarutratana

Affiliation Ministry of Public Health, Chiang Mai Provincial Health Office, Chiang Mai, Thailand

Chris Beyrer

cbeyrer@jhsph.edu

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SC NK PS RS AW CC SV. Performed the experiments: SC NK PS RS AW CC SV. Analyzed the data: SC AW. Contributed reagents/materials/analysis tools: AW. Wrote the paper: SC AW CB. Concieved the initial idea for this manuscript: SC.