Corresponding author
Truong Nguyen Ly Thinh, Department of Cardiovascular Surgery, Children Heart Center, National Children’s Hospital, 18/879 La Thanh, Dong Da, Hanoi, Vietnam.
Tel.: (+84) 989999001. E-mail: nlttruong@gmail.com
Funding: The author(s) received no financial support for the research, authorship, and/or publication of this article