using four antisera ( against insulin , glucagon , somatostatin and gastrin ) , insulin , glucagon and somatostatin cells were identified in 2.65 % , 0.001 % and 1.2 % of normal ducts , and 7.5 % , 2.4 % and 4.6 % of ducts with hyperplastic epithelium respectively and were also greatly increased in numbers in the latter group .
C0524984
somatostatin cells
C0014609
epithelium