Myeloablative megatherapy with autologous stem-cell rescue versus oral maintenance chemotherapy as consolidation treatment in patients with high-risk neuroblastoma: a randomised controlled trial. - Berthold,F.; Boos,J.; Burdach,S.; Erttmann,R.; Henze,G.; Hermann,J.; Klingebiel,T.; Kremens,B.; Schilling,F.; Schrappe,M.; Simon,T.; Hero,B. (Lancet Oncology, 2005)