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Retrovirus silencing in stem cells produces silent or variegated provirus. Additional memory and extinction mechanisms act during differentiation. Here we show that retrovirus is silent or variegated(More)
BACKGROUND Despite the efficacy of gemcitabine-platinum regimen, the outcome of patients with recurrent and/or metastatic nasopharyngeal carcinoma (RM NPC) is poor. A phase II trial was conducted to(More)
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