title: Contributions of observational cohort studies in systemic lupus erythematosus: the university of toronto lupus clinic experience.
abstract: This article uses the University of Toronto Lupus Cohort to illustrate the benefits of observational cohort studies in generating important new knowledge in chronic disease such as systemic lupus erythematosus.
authors.affiliation: University of Toronto, Toronto, ON, Canada. m.urowitz@utoronto.ca
authors.forename: Murray B
authors.initials: MB
authors.lastname: Urowitz
authors.forename: Dafna D
authors.initials: DD
authors.lastname: Gladman
mesh_terms: D015331:Cohort Studies; D019317:Evidence-Based Medicine; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000628:therapy*; D009864:Ontario