Overview of the study phases Prior to the randomization phase, we will draw some blood work (1 teaspoon) with regular blood work to see if you/your child meet the final eligibility requirements. If the results are within normal limits, we will proceed on to the Randomization Phase. If the results are not within normal limits for your/your child's age, then you/your child will not be able to proceed with the study and we will pass these test results on to your regular oncologist.