Wei, Nan
Qian, Xuehan
Bi, Hua
Qi, Xiaoli
Lu, Hongyu
Wei, Lirong
Li, Xue
Sun, Fengyuan
Zhang, Bin http://orcid.org/0000-0003-2609-3340
Article History
Received: 6 September 2018
Accepted: 9 December 2018
First Online: 9 January 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the institutional research committee of Tianjin Medical University and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Written informed consent was obtained from the parents of the children involved prior to any testing. Additional informed consent was obtained from the parents of the children for whom identifying information is included in this article.