title: Prevalence and incidence of multiple sclerosis in Boston, 1939-1948; preliminary report.
authors.forename: J
authors.initials: J
authors.lastname: IPSEN
mesh_terms: D001900:Boston; D006801:Humans; D015994:Incidence; D009103:Multiple Sclerosis; D015995:Prevalence; D012598:Sclerosis