title: The impact of the 1997 update of the American College of Rheumatology revised criteria for the classification of systemic lupus erythematosus: what has been changed?
authors.affiliation: University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada.
authors.forename: Marie
authors.initials: M
authors.lastname: Feletar
authors.forename: Dominique
authors.initials: D
authors.lastname: Ibañez
authors.forename: Murray B
authors.initials: MB
authors.lastname: Urowitz
authors.forename: Dafna D
authors.initials: DD
authors.lastname: Gladman
mesh_terms: D017153:Antibodies, Anticardiolipin / Q000097:blood; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000145:classification* / Q000175:diagnosis* / Q000276:immunology; D009504:Neutrophils; D017410:Practice Guidelines as Topic / Q000592:standards; D011446:Prospective Studies; D012219:Rheumatology / Q000592:standards*; D012680:Sensitivity and Specificity; D012955:Societies, Medical / Q000592:standards; D014481:United States
chemical_list: D017153:Antibodies, Anticardiolipin