Assertion: lymphoma's cell | /r/CapableOf | infiltrate their bone marrow
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Source sentences:
text: Individuals with nodal or extranodal disease also present with: systemic B symptoms such as weight loss, night sweats, fevers, and/or fatigue in ~33% of cases; unexplained elevations in their blood levels of lactic acid dehydrogenase and beta-2 microglobulin in many cases; malignant cells infiltrating their bone marrow in 10-20% of cases; and/or localized Stage I or II disease in up to 50% of cases and disseminated Stage III or IV disease in the remaining cases.