Assertion: benzene | /r/Causes | effect
Facets:
Source sentences:
text: Some women who have breathed in high levels of benzene for many months have had irregular menstrual periods and ovary shrinkage, but it is not known for sure if benzene caused these effects.
text: Some women who have breathed high levels of benzene for many months have had irregular menstrual periods and ovary shrinkage, but it is not known for certain if benzene caused these effects.