Extension 
url 
value[x] Documentation for this formatThis is the set of resources that conform to both Obervation link period (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod) and Obervation link period (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod).
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension | 0..1 | Relevant time to pre-pop observation | ||
| url | 1..1 | uri | identifies the meaning of the extension | |
| value[x] | 0..1 | Duration | Value of extension | |
| Documentation for this format | ||||