title: GRAPPA 2007: Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
authors.affiliation: University of Toronto, Toronto, Ontario, Canada. dafna.gladman@utoronto.ca
authors.forename: Dafna D
authors.initials: DD
authors.lastname: Gladman
mesh_terms: D015535:Arthritis, Psoriatic; D035843:Biomedical Research / Q000458:organization & administration*; D006801:Humans; D011565:Psoriasis