Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1110500, OPP1129596, CPT000390)
Asian Development Bank (TA-8656REG 47197-001)
Faculty of Tropical Medicine, Mahidol University
Text and Data Mining valid from 2019-07-16
Received: 5 October 2018
Accepted: 6 July 2019
First Online: 16 July 2019
Ethics approval and consent to participate
: Ethics approval for this study was obtained from the Faculty of Tropical Medicine Ethics Committee (FTM-EC), Mahidol University (MUTM 2014-061-01).
: Not applicable.
: The authors declare that they have no competing interests.