Funding for this research was provided by:
the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (1685)
Article History
Received: 23 February 2019
Accepted: 22 August 2019
First Online: 31 August 2019
Ethics approval and consent to participate
: Written informed consent to participate in the research was obtained from the patient’s parents in the case of participants under the age of 16 to the use of his/her all the related images and information for scientific purposes. The study was approved by the Committee on Clinical Trials and Applications at the Second Xiangya Hospital.
: Not applicable.
: The authors declare that they have no competing interests.