Access, ActionToMinimizeLosses, AgencyOrganizationReference, AggregationVariables, AggregationVariablesReference, ApprovalReview, ApprovalReviewDocument, ApprovalReviewDocumentReference, ApprovalReviewReference, Archive, ArchiveOrganizationReference, ArchiveReference, AssignedVariableReference, AttachmentRegionReference, Attribute, AttributeReference, AuthorizedSource, AuthorizedSourceReference, AuthorizingAgencyReference, BaseLogicalProduct, BaseRecordLayout, BasedOnReference, BasedOnSampleReference, Category, CategoryGroup, CategoryGroupReference, CategoryMap, CategoryMapReference, CategoryReference, CategoryScheme, CategorySchemeReference, ClassificationCorrespondenceTable, ClassificationCorrespondenceTableReference, ClassificationFamily, ClassificationFamilyReference, ClassificationIndex, ClassificationIndexReference, ClassificationItem, ClassificationItemReference, ClassificationLevel, ClassificationLevelReference, ClassificationSeries, ClassificationSeriesReference, Code, CodeList, CodeListGroup, CodeListGroupReference, CodeListReference, CodeListScheme, CodeListSchemeReference, CodeReference, CodedDataAsNumeric, CodedDataAsText, CodesClassificationItemReference, CognitiveExpertReviewActivity, CognitiveInterviewActivity, CollectionEvent, CollectionSituation, Comparison, ComparisonReference, ComplianceConceptReference, ComponentReference, ComponentSampleReference, ComputationItem, Concept, ConceptGroup, ConceptGroupReference, ConceptMap, ConceptMapReference, ConceptReference, ConceptScheme, ConceptSchemeReference, ConceptualComponent, ConceptualComponentReference, ConceptualVariable, ConceptualVariableGroup, ConceptualVariableGroupReference, ConceptualVariableReference, ConceptualVariableScheme, ConceptualVariableSchemeReference, ConditionalVariableReference, ContactOrganizationReference, ContactPersonReference, ContactReference, ContentReviewActivity, ContributorReference, ControlConstruct, ControlConstructGroup, ControlConstructGroupReference, ControlConstructReference, ControlConstructScheme, ControlConstructSchemeReference, CoordinateRegion, CreatorReference, CurrentStatisticalClassificationReference, CustodianReference, DDIInstance, DDIProfile, DDIProfileReference, DataCaptureDevelopment, DataCaptureDevelopmentReference, DataCollection, DataCollectionMethodology, DataCollectionReference, DataCollectorOrganizationReference, DataRelationship, DataRelationshipReference, DataSet, DateTimeDomainReference, DateTimeRepresentationReference, DefaultAccess, DefaultDateTimeDataTypeReference, DefaultMissingValuesReference, DefaultNumericDataTypeReference, DefaultTextDataTypeReference, DefaultVariableSchemeReference, DefiningCategoryReference, DefiningConceptReference, DependentVariableReference, DepositoryGroupReference, DepositoryObjectReference, DepositoryResourcePackageReference, DepositoryStudyUnitReference, DerivedFromReference, DevelopmentActivity, DevelopmentActivityGroup, DevelopmentActivityGroupReference, DevelopmentActivityReference, DevelopmentActivityScheme, DevelopmentActivitySchemeReference, DevelopmentImplementation, DevelopmentImplementationReference, DevelopmentPlan, DevelopmentPlanReference, DevelopmentResults, DevelopmentResultsReference, DevelopmentStep, DeviationFromSampleDesign, ElseConstructReference, Embargo, EmbargoReference, EnforcementAgencyOrganizationReference, EvaluatorReference, Exclude, ExcludedClassificationItemReference, ExcludedGeographicLevelReference, ExcludedLocationValueReference, ExcludesConceptReference, FilterVariableReference, FocusGroupActivity, FundingDocument, FundingDocumentReference, GeneralInstruction, GeneralInstructionReference, GenerationInstruction, GenerationInstructionReference, GeographicLayerBaseReference, GeographicLevel, GeographicLevelReference, GeographicLocation, GeographicLocationGroup, GeographicLocationGroupReference, GeographicLocationReference, GeographicLocationScheme, GeographicLocationSchemeReference, GeographicStructure, GeographicStructureGroup, GeographicStructureGroupReference, GeographicStructureReference, GeographicStructureScheme, GeographicStructureSchemeReference, GeographyStructureVariableReference, GrossFileStructure, GrossRecordStructure, Group, GroupReference, GroupingConceptReference, GroupingUniverseReference, IdentifyingVariableReference, IfThenElse, ImputationReference, InParameter, IncludesConceptReference, IndependentVariableReference, Individual, IndividualReference, InformationClassification, InformationClassificationReference, InputMeasurementReference, InputQuestionReference, InputVariableReference, Instruction, InstructionGroup, InstructionGroupReference, InstructionReference, Instrument, InstrumentGroup, InstrumentGroupReference, InstrumentReference, InstrumentScheme, InstrumentSchemeReference, InterviewerInstructionReference, InterviewerInstructionScheme, InterviewerInstructionSchemeReference, ItemMap, KeyVariableReference, LifecycleEvent, LocalGroupContent, LocalGroupContentReference, LocalHoldingPackage, LocalHoldingPackageReference, LocalObjectReference, LocalResourcePackageContent, LocalResourcePackageContentReference, LocalStudyUnitContent, LocalStudyUnitContentReference, LocationValue, LocationValueReference, LogicalProduct, LogicalProductReference, LogicalRecord, LogicalRecordReference, Loop, LoopVariableReference, MaintenanceUnitReference, ManagedDateTimeRepresentation, ManagedDateTimeRepresentationReference, ManagedItemMap, ManagedItemMapReference, ManagedMissingValuesRepresentation, ManagedMissingValuesRepresentationReference, ManagedNumericRepresentation, ManagedNumericRepresentationReference, ManagedRepresentation, ManagedRepresentationGroup, ManagedRepresentationGroupReference, ManagedRepresentationReference, ManagedRepresentationScheme, ManagedRepresentationSchemeReference, ManagedScaleRepresentation, ManagedScaleRepresentationReference, ManagedTextRepresentation, ManagedTextRepresentationReference, MeasureDefinition, MeasureDefinitionReference, MeasurementConstruct, MeasurementGroup, MeasurementGroupReference, MeasurementItem, MeasurementItemReference, MeasurementReference, MeasurementScheme, MeasurementSchemeReference, Methodology, MethodologyReference, MissingValuesDomainReference, MissingValuesReference, MissingValuesReference, ModeOfCollection, NCube, NCubeGroup, NCubeGroupReference, NCubeInstance, NCubeInstance, NCubeInstance, NCubeInstanceReference, NCubeMeasureDefinitionReference, NCubeReference, NCubeScheme, NCubeSchemeReference, NumericDomainReference, NumericRepresentationReference, Organization, OrganizationGroup, OrganizationGroupReference, OrganizationReference, OrganizationScheme, OrganizationSchemeReference, OriginalArchiveOrganizationReference, OtherMaterial, OtherMaterialGroup, OtherMaterialGroupReference, OtherMaterialReference, OtherMaterialScheme, OtherMaterialSchemeReference, OutParameter, OverriddenCodeReference, OwnerReference, ParentClassificationItemReference, ParentGeographicLevelReference, PhysicalDataProduct, PhysicalDataProductReference, PhysicalInstance, PhysicalInstanceGroup, PhysicalInstanceGroupReference, PhysicalInstanceReference, PhysicalRecordSegment, PhysicalStructure, PhysicalStructureGroup, PhysicalStructureGroupReference, PhysicalStructureLinkReference, PhysicalStructureReference, PhysicalStructureScheme, PhysicalStructureSchemeReference, PrecedesLocationValue, PredecessorReference, PretestActivity, ProcessingEvent, ProcessingEventGroup, ProcessingEventGroupReference, ProcessingEventReference, ProcessingEventScheme, ProcessingEventSchemeReference, ProcessingInstruction, ProcessingInstructionGroup, ProcessingInstructionGroupReference, ProcessingInstructionReference, ProcessingInstructionScheme, ProcessingInstructionSchemeReference, PublisherReference, QualityScheme, QualitySchemeReference, QualityStandard, QualityStandardGroup, QualityStandardGroupReference, QualityStandardReference, QualityStatement, QualityStatementGroup, QualityStatementGroupReference, QualityStatementReference, QuestionBlock, QuestionBlockReference, QuestionConstruct, QuestionGrid, QuestionGridReference, QuestionGroup, QuestionGroupReference, QuestionItem, QuestionItemReference, QuestionMap, QuestionMapReference, QuestionReference, QuestionScheme, QuestionSchemeReference, RecommendedSampleFrameReference, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayoutGroup, RecordLayoutGroupReference, RecordLayoutReference, RecordLayoutScheme, RecordLayoutSchemeReference, RecordRelationship, RelatedMapReference, RelatedOtherMaterialReference, RelatedToReference, Relation, RelationReference, RepeatUntil, RepeatWhile, RepresentationMap, RepresentationMapReference, RepresentedVariable, RepresentedVariableGroup, RepresentedVariableGroupReference, RepresentedVariableReference, RepresentedVariableScheme, RepresentedVariableSchemeReference, ResourceObjectReference, ResourcePackage, ResourcePackageReference, ResponseDomainReference, ResponsibleAgencyReference, ResponsibleForSamplingReference, ReviewObjectReference, Sample, SampleFrame, SampleFrameAccess, SampleFrameReference, SampleFrameUsedReference, SampleLocationReference, SampleReference, SampleSizeFormulaReference, SampleStep, SamplingInformationGroup, SamplingInformationGroupReference, SamplingInformationScheme, SamplingInformationSchemeReference, SamplingPlan, SamplingPlanImplementedReference, SamplingPlanReference, SamplingProcedure, SamplingStage, SamplingStageReference, SamplingUnitReference, ScaleDomainReference, ScaleRepresentationReference, Sequence, SimilarConceptReference, SourceClassificationItemReference, SourceClassificationReference, SourceFrameReference, SourceItemReference, SourceLevelReference, SourceLinkVariableReference, SourceLogicalRecordReference, SourceParameterReference, SourceSchemeReference, SourceVariableReference, SpatialCoverage, SpatialCoverageReference, Split, SplitJoin, StandardWeight, StandardWeightReference, StandardWeightReference, StatementItem, StatisticalClassification, StatisticalClassificationReference, StudyUnit, StudyUnitReference, SubCategoryReference, SubUniverseClass, SubUniverseClassReference, SubclassOfReference, SuccessorClassificationItemReference, SuccessorReference, SummaryDataReference, SupersedesLocationValue, TargetClassificationItemReference, TargetClassificationReference, TargetItemReference, TargetLevelReference, TargetLinkVariableReference, TargetLogicalRecordReference, TargetParameterReference, TargetSchemeReference, TemporalCoverage, TemporalCoverageReference, TextDomainReference, TextRepresentationReference, ThenConstructReference, TimeMethod, TopLevelReference, TopicalCoverage, TopicalCoverageReference, TranslationActivity, UnitType, UnitTypeClassifiedReference, UnitTypeGroup, UnitTypeGroupReference, UnitTypeReference, UnitTypeScheme, UnitTypeSchemeReference, Universe, UniverseGroup, UniverseGroupReference, UniverseMap, UniverseMapReference, UniverseReference, UniverseScheme, UniverseSchemeReference, UntilConstructReference, ValueRepresentationReference, Variable, VariableGroup, VariableGroupReference, VariableGroupReference, VariableMap, VariableMapReference, VariableReference, VariableScheme, VariableSchemeReference, VariableStatistics, VariableStatisticsReference, VariableUsedReference, VariantOfReference, VersionResponsibilityReference, WeightVariableReference, Weighting, WeightingMethodology, WeightingMethodologyReference, WeightingProcessReference, WeightingReference, WhileConstructReference