Assertion: pulmonary embolectomy | /r/HasProperty | undertaken in the past
Facets:
value: infrequently
type: TEMPORAL
Source sentences:
text: Surgical pulmonary embolectomy has been undertaken infrequently in the past, but there has been an increased interest and some institutions are now using this procedure preferentially.
text: Surgical pulmonary embolectomy has been undertaken infrequently in the past, but there has been an increased interest and some institutions are now using this procedure preferentially.