Princess Maxima Center for Pediatric Oncology, Utrecht, Netherlands
E. Spinedi
Centre for Experimental & Applied Endocrinology, CONICET Mar del Plata, Argentina Research Council, La Plata Medical School, Mar del Plata, Argentina
H.L. Muller
Department of Pediatrics and Pediatric Hematology/Oncology, University Children's Hospital, Carl von Ossietzky University, Klinikum Oldenburg AöR, Oldenburg, Germany