@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:26922_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Cualquier medicamento o tratamiento simulado."@es, "Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol."@en ;
  dc:source "Medical Subject Headings 2012" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:26922
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2015-03-09"^^xsd:date ;
  skos:altLabel "sham treatment"@en ;
  skos:broader nalt:9555 ;
  skos:definition nalt:26922_def ;
  skos:exactMatch <http://id.cabi.org/cabt/91447>, <http://id.agrisemantics.org/gacs/C19518> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:prefLabel "placebos"@es, "placebos"@en ;
  skos:related nalt:8450, nalt:26917, nalt:34638 ;
  ns0:marc001 "51080" .

nalt:34638
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "drug evaluation"@en, "evaluación de fármacos"@es ;
  skos:related nalt:26922 .

nalt:26917
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "ensayos clínicos"@es, "clinical trials"@en ;
  skos:related nalt:26922 .

nalt:9555
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:26922 ;
  skos:prefLabel "diseño experimental"@es, "experimental design"@en .

nalt:8450
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "propiedades médicas"@es, "medicinal properties"@en ;
  skos:related nalt:26922 .