Assertion: streptokinase | /r/CapableOf | serve as standard
Facets:
value: for comparison with the others
type: PURPOSE
Source sentences:
text: Streptokinase, because it has been the agent most extensively studied and its clinical benefits have been established, now serves as a standard for comparison with the others (anisoylated plasminogen-streptokinase activator complex, urokinase, recombinant tissue plasminogen activator, and recombinant pro-urokinase).