[1] Bambino Gesu Children Hosp IRCCS, Oncohematol, Rome, Italy
[2] ARNAS Civ Cristina & Bentratelli, Pediat Hematol Oncol Unit, Palermo, Italy
[3] Bambino Gesu Children Hosp IRCCS, Surg, Rome, Italy
[4] Bambino Gesu Children Hosp IRCCS, Pathol, Rome, Italy
[5] IRCCS Ist G Gaslini, Oncol, Genoa, Italy
[6] Univ Padua, Pediat Oncol Womens & Childrens Hlth Dept, Padua, Italy
[7] Fdn IRCCS Ist Nazl Tumori Milano, Pediat, Milan, Italy
[8] Fdn IRCCS Ist Nazl Tumori Milano, Surget, Milan, Italy
[9] Univ Padua, Pediat Surg Womens & Childrens Hlth Dept, Padua, Italy
[10] Univ Palermo, Pediat Surg, Palermo, Italy