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The risk of developing progressive multifocal leukoencephalopathy (PML) with natalizumab increases after 2 years of therapy. Patients with multiple sclerosis should be informed of the risk before treatment, and again after 2 years. The risk of developing PML beyond 3...
Speech delivered by Minister for Defence Equipment, Support and Technology at the RAF Club, Piccadilly, London on Thursday 22 July 2010.
First published during the 2010 to 2015 Conservative and Liberal Democrat coalition government
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