to evaluate the pathogenetic significance of impaired cellular immunity in inflammatory bowel disease ( ibd ) , we have measured the cutaneous responsiveness to dinitrochlorobenzene ( dncb ) among 58 patients with ibd , 33 with crohn 's disease and 25 with ulcerative colitis , 63 of their clinically normal relatives , 24 additional ileitis and colitis patients who had undergone resection of all visibly diseased bowel , and 23 control subjects .
C0021390
ibd
C0010346
crohn 's