title: Case of IgG4-related retroperitoneal fibrosis with concomitant rheumatoid arthritis.
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Kikuno
authors.forename: Hideaki
authors.initials: H
authors.lastname: Sato
authors.forename: Osamu
authors.initials: O
authors.lastname: Ryoji
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008297:Male; D012185:Retroperitoneal Fibrosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000276:immunology*; D014057:Tomography, X-Ray Computed
chemical_list: D007074:Immunoglobulin G