Assertion: trichloroethylene | /r/ObjectUse | used in europe
Facets:
value: in north america
type: LOCATION
value: from the 1930s
type: TEMPORAL
value: as a volatile anesthetic
type: PURPOSE
Source sentences:
text: From the 1930s through the 1970s, both in Europe and in North America, trichloroethylene was used as a volatile anesthetic almost invariably administered with nitrous oxide.
text: From the 1930s through the 1970s, both in Europe and in North America, trichloroethylene was used as a volatile anesthetic almost invariably administered with nitrous oxide.