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We describe large B cells, many of which have a stellate or dendritic morphology, found in the interfollicular T-cell-rich areas of human peripheral lymphoid tissue. These B cells probably require CD40/CD40 ligand signaling for their generation and have a unique phenotype and a post-germinal center pattern of immunoglobulin gene mutation. The only(More)
Epidemiologic studies have reported an inverse association between sun exposure and non-Hodgkin lymphoma (NHL), but these have been almost exclusively conducted in Western populations residing in temperate locations. We evaluated the association between personal outdoor sun exposure and risk of malignant lymphomas in Singapore. A hospital-based case–control(More)
Bcl-x is an important member of the bcl-2 family of proteins that has been shown to be expressed by both native nervous system tissue and several nervous system tumors. Its anti-apoptotic activity is believed to contribute to nervous system tumorigenesis. We seek to compare the staining characteristics of Bcl-x and GFAP in various neuronal and glial(More)
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