Huong, Phan Le Thanh
Hien, Pham Thu
Lan, Nguyen Thi Phong
Tuan, Dao Minh
Anh, Dang Duc
Binh, Tran Quang
Article History
Received: 18 January 2020
Revised: 22 February 2020
Accepted: 24 August 2020
First Online: 13 August 2021
Ethics clearance
: Research Ethics Committee Vietnam National Children’s Hospital; No. 1124/HDDD, dated 2 June, 2010.