Assertion: goiter's cause | /r/HasProperty | cancer
Facets:
Source sentences:
text: These include: observation (only in the case of small goiters), medication (to treat the underlying cause; by treating it, the goiter should disappear), radioactive iodine (taken orally, it reaches the thyroid through the bloodstream, thus reducing the size of it), and surgery (applied when the cause of the thyroid are nodules or cancer; or, if the size of the goiter is causing difficulties in breathing).