[1] Aghia Sophia Childrens Hosp, Dept Pediat 2, Athens 11527, Greece
[2] Univ Gen Hosp Alexandroupolis, Dept Pediat, Alexandroupolis 68100, Greece
[3] 251 Hellen AF Gen Hosp Athens, Dept Orthopaed & Traumatol, Athens 11525, Greece
[4] Univ Crete, Dept Med, Dept Radiol, Iraklion 71500, Greece
[5] Metropolitan Hosp, Dept Med Oncol 1, Attica 18547, Greece