title: Systemic lupus erythematosus in Riyadh, Saudi Arabia.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012529:Saudi Arabia