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Article History

Received: 19 August 2021

Accepted: 3 February 2022

First Online: 15 February 2022

Declarations

:

: All procedures have been approved by the ethics committee of the Shaanxi Provincial Hospital of Chinese Medicine (2020-17). Before randomization, written informed consent will be obtained from all participants prior to their participation. Researchers XB and YY will be responsible for ensuring that each patient completely understands the purpose, procedure, potential risks, and benefits of participating in the study and will also answer any questions relevant to the study. In addition, all researchers will be required to sign a pledge to protect the confidentiality of the study participants. If there are any important protocol modifications, a copy of the revised protocol will be sent to the participants.

: Not applicable.

: The authors declare that they have no competing interests.