Ho-Pham, Lan T.
Ho-Le, Thao P.
Mai, Linh D.
Do, Tam M.
Doan, Minh C.
Nguyen, Tuan V.
Article History
Received: 13 July 2017
Accepted: 16 April 2018
First Online: 16 May 2018
Competing Interests
: The authors declare no competing interests.