@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 agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@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:26917_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects."@en, "Estudio clínico pre-planeado de la seguridad, eficacia, u horario óptimo de dosificación de una o más drogas, dispositivos, o técnicas de diagnóstico, terapéuticas, o profilácticas, en humanos o animales seleccionados según criterios predeterminados de elegibilidad y observado para lograr la evidencia predefinida de efectos favorables y desfavorables."@es ;
  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:26917
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2020-09-10"^^xsd:date ;
  skos:altLabel "controlled clinical trials"@en, "intervention study"@en, "clinical studies"@en ;
  skos:broader nalt:9146 ;
  skos:definition nalt:26917_def ;
  skos:exactMatch agrovoc:c_33992, <http://id.loc.gov/authorities/subjects/sh85027069>, <http://id.cabi.org/cabt/29722>, <http://id.agrisemantics.org/gacs/C5127> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:narrower nalt:26920 ;
  skos:prefLabel "clinical trials"@en, "ensayos clínicos"@es ;
  skos:related nalt:332178, nalt:26921, nalt:136831, nalt:26922, nalt:238256 ;
  ns0:marc001 "8805" .

nalt:26920
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:26917 ;
  skos:prefLabel "randomized clinical trials"@en, "ensayos clínicos aleatorios"@es .

nalt:332178
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "ensayos de eficacia"@es, "efficacy testing"@en ;
  skos:related nalt:26917 .

nalt:26921
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "nutritional intervention"@en, "intervención nutricional"@es ;
  skos:related nalt:26917 .

nalt:136831
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "dosis administrada"@es, "administered dose"@en ;
  skos:related nalt:26917 .

nalt:26922
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "placebos"@en, "placebos"@es ;
  skos:related nalt:26917 .

nalt:238256
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "farmacometría"@es, "pharmacometrics"@en ;
  skos:related nalt:26917 .

nalt:9146
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:26917 ;
  skos:prefLabel "métodos de investigación"@es, "research methods"@en .