Wu, J. H.
Zhang, H. Y.
Xia, Y.
Jiang, L. Q.
Yuan, Y.
Xu, S. G.
Zhou, P. Y.
Article History
Received: 30 August 2017
Accepted: 3 December 2017
First Online: 3 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Changhai Hospital Ethics Committee.
: Informed consent was obtained from the parents for the use of photographic images and recording of the operative procedures.