Xie, Shan-Shan
Lian, Kun-Yu
Lin, Rong-Mao
Article History
First Online: 24 May 2018
Compliance with Ethical Standards
:
: On behalf of all the authors, the corresponding author states that there was no conflict of interest.
: All procedures were approved by the Academic Ethics Committee of Fujian Normal University.
: Written informed consent was obtained from each participant, his/her teacher, and his/her guardian.