Wang, Chao
Lu, Jian
Wang, Yong
Zhu, Guang-Yu
Chen, Li
Li, Jun-Chao
Li, Tian-Kuan
Chen, Lei
Guo, Jin-He http://orcid.org/0000-0002-4620-2930
Funding for this research was provided by:
Jiangsu Provincial Department of Finance (BE2016783)
Article History
Received: 23 January 2019
Accepted: 23 May 2019
First Online: 29 May 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: For this type of study, consent for publication is not required.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This work was performed with the approval of the local ethics committee. For this type of study, formal consent is not required.
: Informed consent was obtained from all individual participants included in the study. This study was approved by our institutional review board, and the requirement for written informed consent was waived.