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Complement activation biomarker assessments. Plasma levels of (A) C3, (B) Bb, and (C) sC5b9 of 15 anti-C3b/anti-FB–positive plasma samples and 30 healthy controls. *P<0.05; **P>0.01; ***P>0.001. Ctr, control cohort of C3G without anti-C3b and anti-FB autoantibodies; HD, healthy donor.
