title: The continuing challenge of predictive factors in rheumatoid arthritis: prediction or association?
authors.forename: D M
authors.initials: DM
authors.lastname: van der Heijde
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D015331:Cohort Studies; D006801:Humans; D008875:Middle Aged; D011379:Prognosis; D016896:Treatment Outcome