Anti-carbamylated protein antibodies: a specific hallmark for rheumatoid arthritis. Comparison to conditions known for enhanced carbamylation; renal failure, smoking and chronic inflammation. Issue 8 (29th April 2016) - Verheul, M K; van Erp, S J H; van der Woude, D; Levarht, E W N; Mallat, M J K; Verspaget, H W; Stolk, J; Toes, R E M; van der Meulen-de Jong, A E; Hiemstra, P S; van Kooten, C; Trouw, L A