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

nalt:49401
  skos:related nalt:68545, nalt:68515, nalt:68538 ;
  skos:altLabel "LD50"@en, "lethal dose-50"@en, "LD-50"@en, "LD 50"@en ;
  skos:broader nalt:34021 ;
  dc:created "2006-01-19"^^xsd:date ;
  skos:definition nalt:49401_def ;
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  ns0:marc001 "21184" ;
  dc:modified "2017-10-11"^^xsd:date ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-awic>, <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:hiddenLabel "median lethal dose"@en, "lethal-dose-50"@en, "50% lethal dose"@en ;
  skos:exactMatch <http://id.agrisemantics.org/gacs/C15549> ;
  skos:prefLabel "dosificación letal mediana"@es, "lethal dose 50"@en .

nalt:68538
  skos:prefLabel "procedimiento de dosis fija"@es, "fixed dose procedure"@en ;
  a ns0:Topic, skos:Concept ;
  skos:related nalt:49401 .

nalt:49401_def
  rdf:value "Cantidad en una sola dosis de una sustancia sólida o líquida suficiente para matar al 50% de la población probada. Usualmente se expresa en mg/kg (miligramos del material por kilogramo de peso corporal) y es usada para todas las rutas de exposición a excepción de la inhalación. Compare con “concentración letal 50”"@es, "The amount of a single dose of a solid or liquid substance required to kill 50% of the tested population. It is usually expressed in mg/kg (milligram of material per kilogram of body weight) and is used for all routes of exposure other than inhalation. Compare \"lethal concentration 50\"."@en ;
  dc:source "NAL Thesaurus Staff" ;
  a ns0:Definition .

nalt:34021
  skos:prefLabel "dósis letal"@es, "lethal dose"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:49401 .

ns0:Topic
  rdfs:label "Topic"@en ;
  a owl:Class .

nalt:68545
  skos:prefLabel "concentración letal 50"@es, "lethal concentration 50"@en ;
  a ns0:Topic, skos:Concept ;
  skos:related nalt:49401 .

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

nalt:68515
  skos:prefLabel "método de clase tóxica aguda"@es, "acute toxic class method"@en ;
  a ns0:Topic, skos:Concept ;
  skos:related nalt:49401 .