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Jalkanen A, Alanen A, Airas L; Finnish Multiple Sclerosis and Pregnancy Study Group.Jalkanen A, et al.Mult Scler. 2010 Aug;16(8):950-5. doi: 10.1177/1352458510372629. Epub 2010 Jun 11.Mult Scler. 2010.PMID: 20542921