Li, Sichen
He, Yuxia
Cao, Mingzhu
Liu, Hanyan
Liu, Jianqiao
Article History
Received: 3 December 2019
Accepted: 23 March 2020
First Online: 4 April 2020
Ethics approval and consent to participate
: 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. The Institutional Review Committee of the Third Affiliated Hospital of Guangzhou Medical University approved all the protocols of the study.
: The author confirms that the work described has not been published before (except in the form of an abstract or as part of a published lecture, review, or thesis); that its publication has been approved by all co-authors; that its publication has been approved (tacitly or explicitly) by the responsible authorities at the institution where the work is carried out.
: The authors declare that they have no competing interests.