title: Monitoring of rheumatoid arthritis disease activity in individual patients: still a hurdle when implementing the treat-to-target principle in daily clinical practice.
authors.affiliation: Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht and Department of Rheumatology, Erasmus University Medical Center, Rotterdam, The Netherlands j.w.g.jacobs@umcutrecht.nl.
authors.forename: Johannes W G
authors.initials: JW
authors.lastname: Jacobs
authors.affiliation: Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht and Department of Rheumatology, Erasmus University Medical Center, Rotterdam, The Netherlands.
authors.forename: David F
authors.initials: DF
authors.lastname: Ten Cate
authors.affiliation: Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht and Department of Rheumatology, Erasmus University Medical Center, Rotterdam, The Netherlands.
authors.forename: Jacob M
authors.initials: JM
authors.lastname: van Laar
mesh_terms: D001172:Arthritis, Rheumatoid / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D007596:Joints / Q000503:physiopathology*; D012720:Severity of Illness Index; D013997:Time Factors