title: Clustering of extraarticular manifestations in patients with rheumatoid arthritis.
authors.forename: Carl
authors.initials: C
authors.lastname: Turesson
authors.forename: Robyn L
authors.initials: RL
authors.lastname: McClelland
authors.forename: Teresa
authors.initials: T
authors.lastname: Christianson
authors.forename: Eric
authors.initials: E
authors.lastname: Matteson
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D016000:Cluster Analysis; D006801:Humans; D008137:Longitudinal Studies; D012189:Retrospective Studies