Assertion: cystic fibrosis | /r/CreatedBy | defective gene
Facets:
Source sentences:
text: Cystic fibrosis is caused by a defective gene.
text: Cystic fibrosis (CF) is an inherited disease caused by a defective gene, which affects tissues that produce mucus secretions.
text: Cystic fibrosis is caused by a defective gene.
text: Cystic fibrosis is caused by a defective gene passed on by both birth parents that alters a protein responsible for regulating the production of salt and secretions.