Trinh, Van Tuyen
Nguyen, Thi Minh Phuong
Van, Huu Tap
Hoang, Le Phuong
Nguyen, Tien Vinh
Ha, L. T.
Vu, Xuan Hoa
Pham, T. T.
Nguyen, Thi Nu
Quang, N. V.
Nguyen, X. C.
Article History
Received: 8 December 2019
Accepted: 11 February 2020
First Online: 27 February 2020
Competing interests
: The authors declare no competing interests.