Liao, Yu-Hsiu
Kung, Wei-Chieh
Chen, Hsueh-Chih
Article History
Received: 31 December 2018
Accepted: 17 July 2019
First Online: 19 August 2019
Compliance with ethical standards
:
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the National Taiwan Normal University and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all the parents of the individual participants included in the study.