<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>34953</termId><termName>Drogas--Relación estructura-actividad</termName><termType>TT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Drogas--Relación estructura-actividad</termSortkey><termCreatedDate>Drogas--Relación estructura-actividad</termCreatedDate></term>  </Zthes>