It is understood that all medical expenses relating to, or arising from, these procedures will be paid by 
you and/or your insurance company. Financial compensation is not available in the event of physical 
injury, adverse effects, or death resulting from this research project. Medical care will be authorized by 
the attending physician. You and/or your insurance company will be responsible for all costs arising 
from the medical care. 
If you have questions regarding your costs, financial responsibilities, and/or medical insurance coverage 
for this activity, please contact the Supervisor of the Financial Consultation Office at 667-4307. 
In order to evaluate the results of this study, your medical records will need to be available, now and in 
the future, to other physicians and researchers associated with the research project. The National 
Institutes of Health, Food and Drug Administration, and Amgen (drug company making G-CSF) will 
also have to have access to this information. All precautions to maintain confidentiality of medical 
records and personal information will be taken. Your personal identity will not be revealed in any 
publication or results. Study records will be maintained indefinitely for the purpose of analysis and 
follow-up. 
If you have questions about the research [or related injury] please contact the attending physician of 
your twin, your attending physician in the Outpatient Department, Dr. Buckner or Dr. Bensinger at 
667-4453. 
If you have any questions about yotir rights as a research participant, please contact Karen Hansen in 
the Institutional Review Office of Fred Hutchinson Cancer Research Center at 206/667-4867. 
INVESTIGATOR’S STATEMENT 
I have provided an explanation of the above research program. The subject was given an opportunity to 
discuss the procedures, including possible alternatives, and to ask any additional questions. A signed 
copy of this consent form has been given to the subject. 
Investigator’s Signature 
/Date 
SUBJECT’S STATEMENT 
I agree to this study and to the conditions outlined in the Basic Oncology Consent Form which I have 
read and signed. I have had an opportunity to ask questioi s of the physicians, including questions about 
risks, benefits and alternatives to treatment. I have also have the opportunity to ask questions about 
the study, my participation and the need for access to my medical records. They have been answered to 
my satisfaction. 
I understand future questions I may have about the research will be answered by one of the 
investigators listed above. Any financial questions or questions I have about my rights as a research 
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