The UK & Ireland Vasculitis Registry (UKIVAS): Cross-sectional data on the first 2290 Patients with anti-neutrophil cytoplasm (ANCA) associated vasculitis (AAV) - Luqmani, R; Craven, A; Sznajd, J; Basu, N; Barrett, J; Jayne, D; Lanyon, P; Little, M; Robson, M; Salama, A; Watts, R (Rheumatology, 2017)