Assertion: benzodiazepine's effectiveness | /r/HasProperty | determined
Facets:
Source sentences:
text: In addition, the effectiveness and safety of long-term use of these agents remain to be determined.
text: In addition, the effectiveness and safety of long-term use of nonbenzodiazepine hypnotic drugs remains to be determined.
text: In addition, the effectiveness and safety of long-term use of these agents remain to be determined.