165
These results are consistent with the roles that CCK and trypsin inhibitors are believed to play in the negative feedback control of pancreatic exocrine function .
 GENE: CCK; GENE: trypsin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: CCK; GENE: trypsin