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Berkot B, MacMillan R.Biogen reports four more Tysabri cases, one death. Internet Document: [1 page], 16 Dec 2010. Available from: URL: http://www.reuters.com
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In their latest monthly report, Biogen Idec confirms four new cases of progressive multifocal leukoencephalopathy (PML), including one fatality,. React. Wkly. 1333, 2 (2011). https://doi.org/10.2165/00128415-201113330-00003
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DOI: https://doi.org/10.2165/00128415-201113330-00003