Interferon-gamma (IFN-γ) and tumour necrosis factor (TNF)-induced nitric oxide as toxic effector molecule in chronic dextran sulfate sodium (DSS)-induced colitis in mice - Obermeier,F.; Kojouharoff,G.; Hans,W.; Scholmerich,J.; Gross,V.; Falk,W. (Clin. Exp. Immunol., 1999)