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<?xml version="1.0" encoding="UTF-8"?>
<ItemGroupDef OID="ODM.IG.LB.WBC" Name="WBC Lab Results with Unit" Repeating="No" Type="Section" >
<!-- The Subject Identifier -->
<ItemRef ItemOID="ODM.IT.SUBJID" Mandatory="Yes" />
<!-- Collected Leukocytes (White Blood Count) with units -->
<!-- The value itself -->
<!-- Remark the reference to the units item using UnitsItemOID -->
<ItemRef ItemOID="ODM.IT.LB.WBC.LBORRES" Mandatory="Yes" UnitsItemOID="ODM.IT.LB.WBC.LBORRESU" />
<!-- The units for the leukocytes measurement -->
<ItemRef ItemOID="ODM.IT.LB.WBC.LBORRESU" Mandatory="Yes" />
<!-- LOINC code of the test to be performed -->
<Coding Code="26464-8" System="http://loinc.org" SystemName="LOINC" SystemVersion="2.92"/>
<!-- Alternative way of stating the origin of the data in the group,
as coming from an Electronic Health Record using the FHIR API,
retrieved by the investigator -->
<Origin Type="Collected" Source="Investigator">
<Source>
<SourceItem>
<!-- The Subject-ID is obtained from ResearchSubject.identifier -->
<!-- The ItemOID references the ItemDef providing the metadata -->
<Resource Type="HL7-FHIR" Name="ResearchSubject" Attribute="identifier" ItemOID="ODM.IT.LB.SUBJID"/>
</SourceItem>
<SourceItem>
<!-- The value itself is obtained from Observation.valueQuantity.value -->
<!-- The ItemOID references the ItemDef providing the metadata -->
<Resource Type="HL7-FHIR" Name="Observation" Attribute="valueQuantity.value" ItemOID="ODM.IT.LB.WBC.LBORRES"/>
</SourceItem>
<SourceItem>
<!-- The value itself is obtained from Observation.valueQuantity.unit -->
<!-- The ItemOID references the ItemDef providing the metadata -->
<Resource Type="HL7-FHIR" Name="Observation" Attribute="valueQuantity.unit" ItemOID="ODM.IT.LB.WBC.LBORRESU"/>
</SourceItem>
</Source>
</Origin>
</ItemGroupDef>
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