Article History
Received: 2 December 2019
Accepted: 3 July 2020
First Online: 4 August 2020
Ethics approval and consent to participate
: Ethics approval No. 2020R023-E01 was obtained on March 30, 2020. All procedures performed in the study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Written consent for data processing was obtained from each patient’s parents. Our study was approved by the Institutional Review Board of Shanghai Children’s Hospital. For further questions, please contact the ethics committee at the following address: Shanghai Children’s Hospital affiliated with Shanghai Jiao Tong University, Shanghai 200062, China, E-Mail: ExternalRef removed
: We can provide the video of the operation. The parents of the study participants gave written consent for their personal or clinical details along with any identifying images to be published in the study.
: Not applicable.