Funding for this research was provided by:
Qiqihar Science and Technology Plan Project (SFGG-201748)
Received: 9 March 2021
Accepted: 20 August 2021
First Online: 1 September 2021
: The study was approved by the Ethics Committee of the Third Affiliated Hospital of Qiqihar Medical University. Signed written informed consents were obtained from the patients and/or guardians.
: Not applicable.
: The authors declare that they have no competing interests.