Limwattananon, Chulaporn http://orcid.org/0000-0002-6744-8198
Jaratpatthararoj, Jiraphan
Thungthong, Jutatip
Limwattananon, Phumtham
Kitkhuandee, Amnat
Funding for this research was provided by:
National Health Security Office, Thailand
Article History
Received: 14 January 2020
Accepted: 6 February 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee for Human Research, Khon Kaen University (HE 602147).
: Not applicable.
: All authors declare no support from any organization for the submitted work other than National Health Security Office (NHSO). JJ and JT are employees of the NHSO.