DOI:
10.1055/s-00000094
Zeitschrift für Gastroenterologie
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References
FDA Drug Safety Communication: New risk factor for Progressive Multifocal Leukoencephalopathy (PML) associatet with Tysabri (Natalizumab).
webpage on the Internet. Available from:
http://www.fda.gov/Drugs/DrugSafety/ucm288186.htm Accessed October 30, 2013
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