Funding for this research was provided by:
Clinical research center of the First Affiliated Hospital of Xi’an Jiaotong University (XJTU1AF-CRF-2019-012)
Article History
Received: 12 April 2020
Accepted: 18 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The Ethics Committee of the First Affiliated Hospital of Xi’an Jiaotong University approved the protocol of this trial (approval number XJTU1AF2019LSL-012, approval date 3 December 2019). Participants’ or their representatives’ written informed consents will be obtained before they are enrolled in the trial. If the protocol or informed consent form should be modified, or if the primary investigators should be replaced, all the documents should be reviewed again and implemented after approval. The ethics committee approval will be available from the corresponding authors on reasonable request.
: Not applicable.
: The authors declare that they have no competing interests.