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The following topics are included in this page.

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1. Retrieve Data Elements with Object Class “Primary” concept named “Blood and Blood Products” (result in HTML).

   Code Block
   title Retrieve Data Elements
   http://cadsrapi.nci.nih.gov/cadsrapi40/GetHTML?query=DataElement,DataElementConcept,ObjectClass,ConceptDerivationRule&ComponentConcept[Concept[@preferredName=C19448]][@primaryFlag=Yes]

   EXTENSION 1: An extension finds all Data Elements where the concept is used either as a primary OR qualifier concept. This is accomplished by removing last qualifier in the query.

   Code Block
   title Extension 1
   [@primaryFlag=Yes]

   Removing this criteria in Example 1 returns 104 results instead of 88.

2. Retrieve Data Elements with Property “Primary” concept named “E-Mail Address”.

   Code Block
   title Retrieve Data Elements
   http://cadsrapi.nci.nih.gov/cadsrapi40/GetHTML?query=DataElement,DataElementConcept,Property,ConceptDerivationRule&ComponentConcept[Concept[@longName=E-mail%20Address]][@primaryFlag=Yes]

   EXTENSION 2:  To retrieve the next higher order "type" administered items, remove the name of the item(s) before it in the query argument list, for example, to get DECs with E-Mail address as the primary concept, remove "DataElement" (the first item in the query argument list in Example 2).

3. Retrieve Data Element Concepts with Property “Primary” concept named “E-Mail Address”.

   Code Block
   title Extension 2
   http://cadsrapi.nci.nih.gov/cadsrapi40/GetHTML?query=DataElementConcept,Property,ConceptDerivationRule&ComponentConcept[Concept[@longName=E-mail%20Address]][@primaryFlag=Yes]

4. Retrieve Data Elements with Value Domain's Value Meaning "Primary" concept code= C19448 (Blood and Blood Products”) (result in XML).

   Code Block
   title Retrieve Data Elements
   http://cadsrapi.nci.nih.gov/cadsrapi40/GetXML?query=DataElement,EnumeratedValueDomain,ValueDomainPermissibleValue,PermissibleValue,ValueMeaning,ConceptDerivationRule&ComponentConcept[Concept[@longName=Blood and Blood Products]][@primaryFlag=Yes]

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