title: No association of multiple sclerosis activity and progression with EBV or tobacco use in BENEFIT.
authors.affiliation: Caparica.
authors.forename: Armando
authors.initials: A
authors.lastname: Sena
authors.affiliation: Lisbon.
authors.forename: Carlos
authors.initials: C
authors.lastname: Capela
authors.affiliation: Caparica, Portugal.
authors.forename: Véronique
authors.initials: V
authors.lastname: Ferret-Sena
authors.forename: Kassandra L
authors.initials: KL
authors.lastname: Munger
authors.affiliation: Boston.
authors.forename: Alberto
authors.initials: A
authors.lastname: Ascherio
authors.affiliation: Whippany, NJ.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Suarez
mesh_terms: D018450:Disease Progression; D020031:Epstein-Barr Virus Infections; D004854:Herpesvirus 4, Human; D006801:Humans; D009103:Multiple Sclerosis; D064424:Tobacco Use