Dexamethasone 8 mg/m2/day PO (t.i.d.) Days 1-8, 15, 21, Vincristine 1.5 mg/m2/week IV (max 2 mg) Days 1, 8, 15, Doxorubicin 30 mg/m2 Days 1, 8, L-asparaginase 25,000 Unit/m2 IM Days 1, 8, 15, Intrathecal chemotherapy, dose age dependent Day 1.