1. Servizio Oncologico Canionale, Ospedale San Giovanni, Bellinzona, Swiizerland
2. Molecular Pharmacology Unit, Department of Oncology, Istituto di Ricerche Farmacologiche “Mario Negri”, Milan, Italy
3. LRF Department of Haematology and Oncology, Insitute of Child Health, University College London, Uniied Kingdom