Vo, Nam Xuan
Vo, Trung Quang
Watanapongvanich, Somtip
Witvorapong, Nopphol https://orcid.org/0000-0002-7926-381X
Article History
Accepted: 27 June 2018
First Online: 30 June 2018
Compliance with ethical standards
:
: None declared.
: The research protocol used in this study was approved by the Science and Ethics Council in Biomedical Research at the Department of Health—Ho Chi Minh City, Vietnam, on April 20, 2015.