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Figure 1 Results of the application of (A) the American College of Rheumatology (1990) criteria and (B) the Chapel Hill Consensus Conference definitions for Wegener's granulomatosis (WG), Churg–Strauss syndrome (CSS), microscopic polyangiitis (MPA) and polyarteritis nodosa (PAN) to a cohort of 99 patients. Data from Lane et al.14
