Wang, Haoyu
Sun, Yingxian
Li, Zhao
Guo, Xiaofan
Chen, Shuang
Ye, Ning
Tian, Yichen
Zhang, Lijun http://orcid.org/0000-0003-4091-8943
Article History
Received: 8 September 2017
Accepted: 4 April 2018
First Online: 10 April 2018
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of China Medical University. All procedures were performed in accordance with ethical standards. Informed consent was signed by all the participants.
: Consent for publication was obtained in all participants.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.