<http://linkedlifedata.com/resource/pubmed/keyword/AMMONIUM+COMPOUNDS%2C+QUATERNARY> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://linkedlifedata.com/resource/pubmed/Keyword> .
<http://linkedlifedata.com/resource/pubmed/keyword/AMMONIUM+COMPOUNDS%2C+QUATERNARY> <http://www.w3.org/2000/01/rdf-schema#label> "AMMONIUM COMPOUNDS, QUATERNARY" .
<http://linkedlifedata.com/resource/pubmed/keyword/AMMONIUM+COMPOUNDS%2C+QUATERNARY> <http://linkedlifedata.com/resource/pubmed/isMajorTopic> "Y" .
<http://linkedlifedata.com/resource/pubmed/keyword/AMMONIUM+COMPOUNDS%2C+QUATERNARY> <http://linkedlifedata.com/resource/pubmed/owner> "NLM" .