2 Division of Paediatrics, University of Western Australia, Perth, WA, Australia. michael.paddock@doctors.org.uk.
3 Department of Oncology & Metabolism, University of Sheffield, Sheffield Children's NHS Foundation Trust, Sheffield, UK. michael.paddock@doctors.org.uk.
4 Department of Diagnostic Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
5 Department of Paediatric Radiology, Leeds Children's Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
6 Department of Radiology, Great Ormond Street Hospital NHS Foundation Trust, London, UK.
7 Paediatric Radiology Department, AP-HP, Bicêtre Hospital, Le Kremlin-Bicêtre, Paris, France.
8 Radiology Department, Medical School, University Hospital of Heraklion, University of Crete, Crete, Greece.
9 Faculty of Medicine, Paris-Saclay University, Le Kremlin Bicêtre, Paris, France.
10 Department of Radiology, Medical School, University of Ioannina, Ioannina, Greece.
11 Department of Radiology and Nuclear Medicine, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
12 Department of Oncology & Metabolism, University of Sheffield, Sheffield Children's NHS Foundation Trust, Sheffield, UK.
13 Department of Radiology, Sheffield Children's NHS Foundation Trust, Sheffield, UK.