Comparative Frequency of Systemic autoimmune rheumatic diseases (SARDs) in Australia: - SLE 57.9 per 100K - Lupus nephritis 11.2 per 100K - SSc 25.6 per 100K - ANCA-associated vasculitis 10.8 per million PYs https://t.co/cx9LvswQ2E https://t.co/ltcXCw23bI