European Medicines Evaluation Agency (emea) - EMEA press release - European Medicines Agency recommends additional measures to better manage risk of progressive multifocal leukoencephalopathy (PML) with Tysabri (ID - humtop)

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21 January 2010 EMA/37607/2010 Press Office Press release European Medicines Agency recommends additional measures to better manage risk of progressive multifocal leukoencephalopathy (PML) with Tysabri Risk of PML increases after two years, but be...