1. Pediatric Oncology Unit Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
2. Lega Italiana per la Lotta Contro I Tumori, Monza e Brianza (LILT) Milano Italy
3. Pediatric Hematology/Oncology Fondazione IRCCS Policlinico San Matteo Pavia Italy
4. www.enartis.com Novara Italy
5. Western Ukrainian Specialized Children's Medical Centre Lviv Ukraine
6. Pediatric Cancer and Blood Disorders Center of Armenia Yerevan Armenia
7. Oncology and Hemato‐Oncology Department Milano Statal University Milan Italy