1 H.C. Andersen Børne- og Ungehospital, Odense Universitetshospital.
2 Odense Pancreas Center (OPAC), Odense Universitetshospital.
3 Ukrainian Research Centre of Endocrine Surgery, Endocrine Organs and Tissue Transplantation, Paediatric Endocrinology Department, Ministry of Health of Ukraine, Kyiv, Ukraine.