Received: 29 April 2020
Accepted: 17 March 2021
First Online: 31 March 2021
: The study was approved by the Ethics Committee of Yiyang Central Hospital, Yiyang, China. Patients who participated in this research signed an informed consent document and had complete clinical data. Signed, written informed consent was obtained from the patients/parents and/or guardians where applicable.
: Not applicable
: The authors declare no competing interests.