Authors
Ungsinun Intarakamhang
Behavioral Science Research Institute, Srinakharinwirot University, Bangkok, Thailand
Yuttapong Kwanchuen
Department of Health Service Support, Ministry of Public Health, Nonthaburi, Thailand
© 2017 Ungsinun Intarakamhang, Yuttapong Kwanchuen, published by Chulalongkorn University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.