Assertion: thalidomide | /r/HasProperty | proven useful
Facets:
value: for treating cancer
type: PURPOSE
value: more recently
type: TEMPORAL
Source sentences:
text: More recently, thalidomide has proven useful for treating cancer and leprosy and is approved for these uses.
text: More recently, thalidomide has proven useful for treating cancer and leprosy and is approved for these uses.