"Alteplase for Stroke" is an exposure concept with a detailed dosing instruction that may be used in expressing what an Evidence is about.

<membership value="conceptual"/> <characteristic> <code> <text value="Defined by Reference"/> </code> <valueUri value="http://example.org/fhir/ActivityDefinition/example-alteplase-dosing"/> <exclude value="false"/> <description value="IV alteplase 0.9 mg/kg (maximum 90 mg) as 10% of dose over 1 minute and 90% over 1 hour"/> </characteristic> </Group> </contained> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="cds"/> </extension> <name value="AlteplaseForStroke"/> <title value="Alteplase for Stroke"/> <status value="draft"/> <publisher value="HL7 International / Clinical Decision Support"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/dss"/> </telecom> </contact> <description value="Alteplase for Stroke"/> <actual value="false"/> <definition> <reference> <reference value="#Definition-Group"/> </reference> </definition> <handling/> </EvidenceVariable>