title: Can we classify psoriatic arthritis?
authors.forename: Abdul B
authors.initials: AB
authors.lastname: Lodhi
authors.forename: John D
authors.initials: JD
authors.lastname: Carter
authors.forename: Joanne
authors.initials: J
authors.lastname: Valeriano
authors.forename: Frank B
authors.initials: FB
authors.lastname: Vasey
mesh_terms: D015535:Arthritis, Psoriatic / Q000145:classification* / Q000473:pathology*; D006801:Humans; D012219:Rheumatology / Q000379:methods*