Last abstract of #ACR23 was #ACRBest Plasma cfDNA signatures (synovial mapped) to identify RA vs OA, other inflamm arthritis Great performance, even with seroneg RA A blood test to: diagnose ?phenotype ?identify best b/tsDMARD Could be massive Peter Taylor ABST2586 @RheumNow https://t.co/tJX2jXV0Oe