IL-23/IL-17 immunity as a hallmark of Crohn’s disease - Holtta, V; Klemetti, P; Sipponen, T; Westerholm-Ormio, M; Kociubinski, G; Salo, H; Rasanen, L; Kolho, K L; Farkkila, M; Savilahti, E; Vaarala, O (Inflamm Bowel Dis, 2008)