Li, Changlong
Gao, Liang
Zhang, Jindong
Yang, Xiaokang
Liu, Chuan http://orcid.org/0000-0002-6362-0261
Article History
Received: 19 November 2019
Accepted: 22 January 2020
First Online: 31 January 2020
Compliance with ethical standards
:
: 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 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.