Temporal Relationship Between Elevation of Epstein-Barr Virus Antibody Titers and Initial Onset of Neurological Symptoms in Multiple Sclerosis
JAMA 293:2496-2500, Levin,L.I.,et al, 2005
Severely Threatening Events and Marked Life Difficulties Preceding Onset or Exacerbation of MS
JNNP 52:8-13, Grant,I.,et al, 1989