<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>23102</termId><termName>COMPUESTOS ORGANONITROGENADOS</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>COMPUESTOS ORGANONITROGENADOS</termSortkey><termCreatedDate>COMPUESTOS ORGANONITROGENADOS</termCreatedDate><termModifiedDate>2015-02-11 11:10:23</termModifiedDate><relation><relationType>UF</relationType><termId>30697</termId><termName>Compuestos orgánicos del nitrógeno</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>30698</termId><termName>Nitrógeno--Compuestos orgánicos</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>6668</termId><termName>COMPUESTOS DE NITROGENO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>4280</termId><termName>ALCALOIDES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>24502</termId><termName>IMINAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>30696</termId><termName>PTERIDINAS</termName><termType>PT</termType></relation></term>  </Zthes>