Zhang, Jun
Yin, Peng
Han, Bo
Zhao, Jianmin
Yin, Bo
Article History
Received: 22 August 2020
Accepted: 9 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The study was performed in accordance with the ethical standards of the Declaration of Helsinki of 1964. Consent to participate in the study was obtained from all the patients.
: All patients included in the study provided their informed consent at enrolment and the use of patients’ data for research.
: The authors declare that they have no competing interests.