PubMed:: "Lupus Erythematosus, Systemic"[Mesh] OR systemic lupus erythematosus[tiab] OR sle[tiab] OR lupus erythematosus disseminatus[tiab] OR libman sacks disease*[tiab] OR lupus[tiab];; Embase.com:: 'systemic lupus erythematosus'/exp OR "systemic lupus erythematosus":ti,ab OR sle:ti,ab OR "lupus erythematosus disseminatus":ti,ab OR ("libman sacks" NEXT/1 disease*):ti,ab OR lupus:ti,ab