Funding for this research was provided by:
Natural Science Foundation of Hunan Province (2019JJ80051, 2019JJ80061)
Received: 22 March 2021
Accepted: 10 June 2021
First Online: 22 June 2021
: The study was approved by the Ethics Committee of Changsha of Traditional Chinese Medicine Hospital.
: An informed consent form was obtained from all the patients or their guardians.
: The authors declare that they have no competing interests.