Assertion: selenium | /r/HasProperty | documented
Facets:
value: for many years
type: TEMPORAL
value: for fertility
type: PURPOSE
value: well
type: DEGREE
Source sentences:
text: It is well documented that a severe iodine deficiency leads to neurological and myxedematous cretinism.
text: Selenium is an essential micronutrient in mammals, but is also recognized as toxic in excess.
text: Selenium has been a recognized treatment for fertility for many years, and the importance of adequate levels of selenium in maintaining healthy sperm cells has been proven.