mortality/aging
• 5 of 13 mice develop lethal lymphoid tumors by 50 weeks of age
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neoplasm
• 5 of 13 mice develop lethal lymphoid tumors by 50 weeks of age
• tumors cells in the bone marrow and peripheral blood exhibit morphologically lymphoblastic features
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• in 4 mice
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growth/size/body
hematopoietic system
immune system