Funding for this research was provided by:
Thailand's Education Hub for Southern Region of Asian Countries (5810320004)
Text and Data Mining valid from 2019-05-07
Received: 22 November 2018
Revised: 25 April 2019
Accepted: 26 April 2019
First Online: 7 May 2019
Compliance with Ethical Standards
: After being approved by the Institutional Ethics Committee of the Faculty of Medicine, Prince of Songkla University, Thailand (document no. 59-306-18-5), the main community-based cross-sectional study containing two major components was conducted.
: The authors declare that they have no conflicts of interest.