---
type: "sdc-page"
title: "SDC: StructureDefinition-sdc-questionnaire-sourceQueries-intro"
source: "sdc/input/pagecontent/StructureDefinition-sdc-questionnaire-sourceQueries-intro.xml"
---
# SDC: StructureDefinition-sdc-questionnaire-sourceQueries-intro

Additional details on the use of this extension can be found on the [Questionnaire Population (StructureMap-based)](/sdc-populate#structuremap-based-population) page.