Measurement of damage in systemic vasculitis: A comparison of the Vasculitis Damage Index with the Combined Damage Assessment Index - Suppiah, R; Flossmann, O; Mukhtyar, C; Alberici, F; Baslund, B; Brown, D; Hasan, N; Holle, J; Hruskova, Z; Jayne, D; Judge, A; Little, M; et al. (2010)