Article History
First Online: 17 November 2018
Compliance with Ethical Standards
: This study was approved by the Postgraduate Board of Studies (Pharmacology), University of Medicine 1, Yangon (an institutional review board). The trial was registered at Thai Clinical Trial registry with the trial registration number TCTR20180808006. All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.
: No financial support was received for this study.