<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>30720</termId><termName>Duréticos mercuriales</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Duréticos mercuriales</termSortkey><termCreatedDate>Duréticos mercuriales</termCreatedDate><relation><relationType>BT</relationType><termId>6649</termId><termName>COMPUESTOS ORGANOMERCURIALES</termName><termType>PT</termType></relation></term>  </Zthes>