Assertion: pancreas's secretion | /r/CapableOf | obstruct the duct system of the gland
Facets:
Source sentences:
text: A mutation in the cystic fibrosis transmembrane regulator (CFTR)-gene leads to defective chloride channels in the ducts of exocrine glands which makes them produce a very viscous secretion that can obstruct the duct system of the gland.