Week 32 - Evaluation, followed by Ifosfamide-Doxorubicin. Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)