Assertion: cancer | /r/CreatedBy | dna changes
Facets:
Source sentences:
text: Cancers can be caused by DNA changes that turn on oncogenes or turn off tumor suppressor genes.
text: Cancers can be caused by DNA changes (gene mutations) that turn on oncogenes or turn off tumor suppressor genes.
text: Cancers can be caused by DNA changes that turn on oncogenes or turn off tumor suppressor genes.