title: Modification of the Psoriatic Arthritis Disease Activity Score (PASDAS).
authors.affiliation: University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, UK.|Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
authors.forename: Philip S
authors.initials: PS
authors.lastname: Helliwell
authors.affiliation: University of Leeds, Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, UK.
authors.forename: Robin
authors.initials: R
authors.lastname: Waxman
mesh_terms: D015535:Arthritis, Psoriatic / Q000175:diagnosis*; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000379:methods*; D012720:Severity of Illness Index
keywords: Disease Activity; Outcomes research; Psoriatic Arthritis