Received: 12 June 2019
Accepted: 6 September 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: All patients provided signed informed consent to allow their clinical and radiologic data to be used for research programs. The name of the Board: Institutional Review Board of Fuzhou Second Hospital of Xiamen University. Approval number is INR 10020181032.
: Not applicable.
: The authors declare that they have no competing interests.