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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">COMPUESTOS DE NITROGENO</topic></authority><related type="narrower"><topic>ALCALOIDES</topic></related><related type="narrower"><topic>AMINAS</topic></related><related type="narrower"><topic>AMINOACIDOS</topic></related><related type="narrower"><topic>AMONIACO</topic></related><related type="narrower"><topic>AZIDICOS</topic></related><related type="narrower"><topic>COMPUESTOS NITROSOS</topic></related><related type="narrower"><topic>COMPUESTOS ORGANONITROGENADOS</topic></related><related type="narrower"><topic>GLUTATION</topic></related><related type="narrower"><topic>Mostazas nitrogenadas</topic></related><related type="narrower"><topic>NITRATOS</topic></related><related type="narrower"><topic>NITRENOS</topic></related><related type="narrower"><topic>Nitritos</topic></related><related type="narrower"><topic>NUCLEOTIDOS</topic></related><related type="narrower"><topic>OXIDO NITRICO</topic></related><related type="narrower"><topic>PIRIMIDINAS</topic></related><related type="narrower"><topic>PIRROL</topic></related><related type="narrower"><topic>PURINAS</topic></related><related type="narrower"><topic>UREA</topic></related><related type="other"><topic>PROTEINAS</topic></related><related type="other"><topic>NUCLEOTIDOS</topic></related><related type="broader"><topic>COMPUESTOS ORGANICOS</topic></related><variant type="other"><topic>Nitrógeno--Compuestos</topic></variant></mads>