<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>44586</termId><termName>PAREDES CELULARES BACTERIANAS</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>PAREDES CELULARES BACTERIANAS</termSortkey><termCreatedDate>PAREDES CELULARES BACTERIANAS</termCreatedDate><relation><relationType>UF</relationType><termId>44587</termId><termName>Paredes celulares de las bacterias</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>8222</termId><termName>BACTERIAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>26642</termId><termName>ENDOTOXINAS</termName><termType>PT</termType></relation></term>  </Zthes>