the histological findings and the number of immunoglobulin-containing cells in gastric and duodenal biopsies from patients with crohn 's disease of the large or small bowel , or both , with and without upper gastrointestinal complaints , are reported and compared with those of healthy controls and patients with chronic non-specific gastritis and duodenitis .
C0399805
duodenal biopsies
C0021852
small bowel