Received: 15 December 2020
Accepted: 15 June 2021
First Online: 28 June 2021
: This study was approved by the Ethical Committee of Northern Jiangsu People’s Hospital (2019113). All procedures performed involving human participants were in accordance with the ethical standards of the Declaration of Helsinki 1964 and its later amendments. Informed consent was obtained from all individual participants included in the study or their relatives.
: Not applicable.
: The authors declare that they have no competing interests.