Funding for this research was provided by:
Guangdong Provincial People's Hospital Hospital Science and Technology Special Project (2017zh04)
Guangzhou Science and Technology Program key projects (201904010448)
Science and Technology Planning Project of Guangdong Province (2014A020212676)
Article History
Received: 24 February 2020
Accepted: 18 April 2020
First Online: 23 April 2020
Compliance with ethical standards
:
: We declare that we have no significant competing financial, professional, or personal interests that might have influenced the performance or presentation of the work described in this manuscript.
: We further confirm that any aspect of the data collection covered in this manuscript that has involved our patients has been conducted with the ethical approval of all relevant bodies and that such approvals are acknowledged within the manuscript.
: We guarantee that the contribution to the work has not been previously published elsewhere, or that if it has been published in whole or in part, any permission necessary to publish it in the work has been obtained.