<qa>  What is the ANC greater than or equal to?- Organ Function Requirements Adequate Bone Marrow Function: a. ANC greater than or equal to 750 b. Platelet count greater than or equal to 50,000, transfusion independent defined as no platelet transfusion for one week. NOTE: hematologic criteria must be met by all patients, regardless of neuroblastoma involvement in bone marrow. Adequate Renal Function a. Glomerular Filtration Rate of greater than or equal to 70 mlmin1.73 m2, OR b. Age-adjusted normal serum creatinine for age Adequate Liver Function a. Total bilirubin less than or equal to 1.5 x normal for age, and b. SGPT ALT and SGOT AST less than 5 x normal for age. 