Assertion: lsd | /r/ObjectUse | used for psychiatric purposes
Facets:
value: since 1947
type: TEMPORAL
value: after 1954
type: TEMPORAL
Source sentences:
text: But LSD had been used for psychiatric purposes since 1947, and more regularly after 1954, and experimentation with drugs during this era had already been going on for some time in the beat generation movement preceding the hippies.