1. Chair and Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
2. Chair and Clinic of Pediatrics, Hematology and Oncology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
3. Chair and Clinic of Pediatric Surgery, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland