Received: 3 January 2020
Accepted: 8 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: The study protocol was approved by the ethics committee of the Xinjiang Medical University Affiliated Hospital of Traditional Chinese Medicine. Because of the retrospective design of the study, the need to obtain informed consent.From eligible patients was waived by the ethics committee.
: Not applicable.
: The authors declare that they have no conflict of interests.