Quantitative evaluation of pediatric umbilical loop stomas: 2 decades of experience from a single institution.

"Declarations Conflict of interestThe authors have no relevant financial or non-financial interests to disclose. Ethical approvalApproval was obtained from The Asahikawa Medical University Research Ethics Committee (Permit no. 21051). All the procedures involving human participants were in accordance with the ethical standards of the Clinical Research Center, Asahikawa Medical University, Japan and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consentThe authors hereby confirm that informed consent was obtained from all the individual patients included in this study. Conflict of interest The authors have no relevant financial or non-financial interests to disclose."

"Funding No funding was received for conducing this study."