Received: 21 February 2022
Accepted: 30 May 2022
First Online: 22 August 2022
: The prospective study was approved by the local ethics committee (No. 54/KBE/2019), complied with the tenets of the Helsinki Declaration, and was funded by a hospital grant (The Children’s Memorial Health Institute internal grant No. 266/19 and S184/2019). All parents of the operated children signed informed consent to participate in the study.
: All agreed to participate their children in the study.
: The authors declare that they have no competing interests.