After protocol IB' and VANDA, VHR patients who are eligible for stem cell transplantation (SCT) and have an HLA-compatible familial donor undergo transplantation. Patients who are ineligible for SCT receive interval therapy, followed by 2 sequences of blocks R1, R2, and R3 (2 courses of each block for a total of 6 courses), and then maintenance therapy for a total treatment duration of 2 years.