Assertion: vitamin e's use | /r/HasAspect | apparent effect
Facets:
value: in the areds trial
type: LOCATION
value: on progression of cataracts
type: TRANSITIVE-OBJECT
Source sentences:
text: However, in the AREDS trial, the use of a vitamin E-containing (as dl-alpha-tocopheryl acetate) formulation had no apparent effect on the development or progression of cataracts over an average of 6.3 years .