Sørensen PS, Bertolotto A, Edan G, Giovannoni G, Gold R, Havrdova E, Kappos L, Kieseier BC, Montalban X, Olsson T.
Risk stratification for progressive multifocal leukoencephalopathy in patients treated with natalizumab.
Mult Scler. 2012 Feb;18(2):143-52. PubMed ID: 22312009.
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Bernd Kieseier