Assertion: barbiturate's duration | /r/HasProperty | 2.5 hours
Facets:
value: with 1 mg stadol ns
type: OTHER
Source sentences:
text: The median duration of pain relief was 2.5 hours with 1 mg Stadol NS, 3.5 hours with 2 mg Stadol NS and 3.3 hours with either dose of meperidine.