Funding for this research was provided by:
Natural Science Foundation of Jilin Province (3D515B173430, 3D516P883430)
Article History
Received: 24 June 2019
Accepted: 30 September 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: The study was approved by the Medical Ethics Committee of China-Japan Union Hospital of Jilin University (2016ks008). Written informed consents were obtained from all patients or their parents.
: The authors declare that they have no competing interest.