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Joanna Kieliszczyk
Department of Pediatrics, Dr. Alfred Sokołowski Specialist Hospital in WałbrzychWałbrzych, Poland
Wojciech Baranowski
Ultrasound Laboratory, Dr. Alfred Sokołowski Specialist Hospital in Wałbrzych, Poland, Department of Neonatal Physiology and Pathology with an Intensive Care Sub-Unit, Regional Specialist Hospital “Latawiec” in ŚwidnicaWałbrzych, Poland
Wojciech Kosiak
Ultrasound and Biopsy Diagnostics Laboratory, Department of Pediatrics, Hematology and Oncology, Medical University of GdańskGdańsk, Poland