Funding for this research was provided by:
Beijing hospital authority ’Fangfan Plan’: pediatric urology (ZYLX201709)
National Key R&D Program of China (2016YFC 1000807)
Received: 8 November 2018
Accepted: 29 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: This study was approved by the institutional review board of Fooyin University Hospital (protocol number: FYH-IRB-101-12-01-A) and informed consent to participate in this study was obtained from all participants.
: The authors declare that they consent to publication.
: The authors declare that they have no competing interests.