 The cord blood units will be used on a first come, first served basis. At the time of donation, you will be given the address and phone number of the MD Anderson Cord Blood Bank. In the unlikely event that you or another immediate family member develop a disease which would require the use of your donated cord blood, it may be released to you on the same basis that it would be provided to other qualifying patients, if it is still under the control of the MD Anderson Cord Blood Bank and has not already been committed to a patient. You should contact the MD Anderson Cord Blood Bank within one month of collection if you wish to have your donated cord blood unit destroyed. If requested, the research staff will destroy your cord blood unit if it has not been used for research, Cord Blood Bank validation studies or quality control. After this one month period has passed, your cord blood unit will be made available for patient use and you will be unable to request that it be destroyed. 