1 Pediatric Oncology Unit, HM CIOCC MADRID (Centro Integral Oncológico Clara Campal), Hospital Universitario HM Montepríncipe, HM Hospitales, Madrid, Spain.
2 Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain.
3 University of Glasgow, Glasgow, Scotland.
4 Genetics, ABACID Company, Madrid, Spain.
5 Department of Nuclear Medicine, HM CIOCC MADRID (Centro Integral Oncológico Clara Campal), Hospital Universitario HM Sanchinarro, HM Hospitales, Madrid, Spain.
6 Department of Radiation Oncology, HM CIOCC MADRID (Centro Integral Oncológico Clara Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain.