Assertion: methylphenidate | /r/HasProperty | approved for medical use
Facets:
value: in 1955
type: TEMPORAL
value: in the united states
type: LOCATION
Source sentences:
text: Methylphenidate was first made in 1944 and was approved for medical use in the United States in 1955.
text: Methylphenidate was first made in 1944 and was approved for medical use in the United States in 1955.