The effect of dimethyl fumarate (Tecfidera™) on lymphocyte counts: A potential contributor to progressive multifocal leukoencephalopathy risk.

Khatri BO, Garland J, Berger J, Kramer J, Sershon L, Olapo T, Sesing J, Dukic M, Rehn E

Mult Scler Relat Disord. 2015 Jul; 4(4):377-9. PMID: 26195059. Abstract