In situ expression of CD40 ligand in noninflamed gut mucosa and in inflammatory bowel disease - Autschbach, Frank; Weckauf, Helgard; Rohr, Claudia; Gaßler, Nikolaus; Heuschen, Gundi; Schröder-Braunstein, Jutta; Meuer, Stefan; Otto, Herwart F. (Pathology, research and practice, 1999)