1. Faculty of Residency, University of Latvia, LV-1586 Riga, Latvia
2. Institute of Diagnostic Radiology, Pauls Stradins Clinical University Hospital, LV-1002 Riga, Latvia
3. Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
4. Department of Pediatric Surgery, Children’s Clinical University Hospital, LV-1004 Riga, Latvia
5. Department of Radiology, Riga Stradins University, LV-1007 Riga, Latvia