Text and Data Mining valid from 2019-07-29
Received: 12 April 2019
Accepted: 22 July 2019
First Online: 29 July 2019
Ethics approval and consent to participate
: Approval was taken from the ethics committee at the Second Xiangya Hospital, Central South University. The certificate approval number (IRB) is S085–2018. All clinical procedures were conducted in accordance with the ethical principles of the Declaration of Helsinki.
: Not applicable.
: The authors indicate no financial disclosures or conflict of interest.