3.4.21.9	carcinoma cell	-	732698	
3.4.21.9	commercial preparation	-	718352	
3.4.21.9	duodenal juice	-	732698	
3.4.21.9	duodenum	-	667758, 684030, 732698, 95565, 95572, 95573, 95574, 95575, 95581	
3.4.21.9	duodenum	duodenal enterocytes are the major type of cells expressing enterokinase	95576	
3.4.21.9	duodenum	duodenal fluid	95573, 95579	
3.4.21.9	duodenum	duodenal mucosa	95570	
3.4.21.9	duodenum	duodenal mucosal fluid adhering to the intestinal wall	95567	
3.4.21.9	duodenum	localized in the brush-border of the enterocytes lining the duodenum and the first 10-20 cm of the small intestine	95565	
3.4.21.9	duodenum	mucosa	717409, 718100, 95584