26. WITHDRAWAL FROM THE P ROTOCOL In this protocol, children being treated for grave and often fatal illness will be treated. Reasons for withdrawa l from the study are expected to fall into three general categories. First, being treated on this protocol will put the family of the treated child under social and financial hardship, since many of the children treated at UF are referred from a distance. This often means an interruption of income for one or both of the parents and difficulties in providing care for siblings, if there are any. Since the protocol spans over 1.5 years (beginning with surgical resection) it may become too difficult for some fa milies to complete planned treatment. Second, a significant AE may convince the child’s family and the child not to continue with the study. Third, a failure to cooperate with the treatment team or treatment schedules may lead to an investigator’s need to remove a child from the study. Any data collected from cases where the subject is withdrawn will be retained and the collected information regarding this case will be included in the reports of the study along with a brief reason for withdrawal from the study.