Received: 4 June 2019
Accepted: 30 August 2019
First Online: 9 October 2019
Change Date: 21 October 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: This study is a retrospective review and is neither prospective nor experimental. A research ethical approval was not applicable; however, approval for the data collection and review for the purpose of this study was obtained from the research and scientific committee of the Department of Pediatric Surgery at Cairo University Specialised Pediatric Hospital in January 2017. The consent to participate is not applicable, as patients received non-experimental surgical care. The study is observational to gather specific information about an approved procedure. However, consent for any clinically indicated surgical procedure or medical intervention followed the standard informed and written documentation.
: Not applicable, as there are no patient-identifiable data published herein.
: The authors declare that they have no competing interests.