Funding for this research was provided by:
National Natural Science Foundation of China (81702008)
Natural Science Foundation of Hebei Province (H2018406024)
Chengde Medical University (201702)
Received: 9 March 2020
Accepted: 22 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: This work was approved by the ethics committees of Chengde Medical University.
: Written informed consent was obtained from the patient described in this report.
: The authors declare that they have no competing interests.