title: Lupus nephritis: a therapeutic challenge.
mesh_terms: D005923:Glomerulosclerosis, Focal Segmental / Q000209:etiology; D006801:Humans; D007668:Kidney / Q000473:pathology; D007678:Kidney Glomerulus / Q000473:pathology; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000473:pathology; D009393:Nephritis / Q000188:drug therapy / Q000209:etiology / Q000473:pathology / Q000628:therapy*; D009395:Nephritis, Interstitial / Q000209:etiology; D012867:Skin / Q000473:pathology