| id | String | No description |
| extension | [Extension] | No description |
| modifierExtension | [Extension] | No description |
| definitionCodeableConcept | CodeableConcept | No description |
| definitionCanonical | canonical | No description |
| _definitionCanonical | ElementBase | No description |
| definitionExpression | Expression | No description |
| definitionDataRequirement | DataRequirement | No description |
| usageContext | [UsageContext] | No description |
| exclude | Boolean | No description |
| _exclude | ElementBase | No description |
| unitOfMeasure | CodeableConcept | No description |
| studyEffectiveDescription | String | No description |
| _studyEffectiveDescription | ElementBase | No description |
| studyEffectiveDateTime | dateTime | No description |
| _studyEffectiveDateTime | ElementBase | No description |
| studyEffectivePeriod | Period | No description |
| studyEffectiveDuration | Duration | No description |
| studyEffectiveTiming | Timing | No description |
| studyEffectiveTimeFromStart | Duration | No description |
| studyEffectiveGroupMeasure | code | No description |
| _studyEffectiveGroupMeasure | ElementBase | No description |
| participantEffectiveDescription | String | No description |
| _participantEffectiveDescription | ElementBase | No description |
| participantEffectiveDateTime | dateTime | No description |
| _participantEffectiveDateTime | ElementBase | No description |
| participantEffectivePeriod | Period | No description |
| participantEffectiveDuration | Duration | No description |
| participantEffectiveTiming | Timing | No description |
| participantEffectiveTimeFromStart | Duration | No description |
| participantEffectiveGroupMeasure | code | No description |
| _participantEffectiveGroupMeasure | ElementBase | No description |