Casal Moura, M., Merkel, P.A., Jayne, D. et al.Challenges in the diagnosis, classification and prognosis of ANCA-associated vasculitis. Nat Rev Rheumatol (2025). https://t.co/fGUr2DnfwA Good figure, citation above. Via @AKronbichler and colleagues https://t.co/FGfPFiGgMv