Low vitamin D and elevated immunoreactivity against Epstein–Barr virus before first clinical manifestation of multiple sclerosis
Bernhard F Décard, Nicolas von Ahsen, Thomas Grunwald, Frank Streit, Anke Stroet, Petra Niggemeier, Volkmar Schottstedt, Joachim Riggert, Ralf Gold, Andrew Chan
Journal of Neurology, Neurosurgery & Psychiatry Dec 2012, 83 (12) 1170-1173; DOI: 10.1136/jnnp-2012-303068