title: Methotrexate and lymphoma a presentation of four cases and review of the literature.
authors.affiliation: Rheumatology Section of the Department of Medicine at the Minneapolis VA Medical Center and the University of Minnesota.
authors.forename: K S
authors.initials: KS
authors.lastname: Kleiman
authors.forename: M L
authors.initials: ML
authors.lastname: Mahowald