<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>51145</termId><termName>BLOQUEADORES BETA ADRENERGICOS</termName><termType>TT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>BLOQUEADORES BETA ADRENERGICOS</termSortkey><termCreatedDate>BLOQUEADORES BETA ADRENERGICOS</termCreatedDate><relation><relationType>UF</relationType><termId>51146</termId><termName>Agentes beta bloqueadores</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>51147</termId><termName>Antagonistas beta adrenérgicos</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>51148</termId><termName>Bloqueadores adrenérgicos beta</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>51149</termId><termName>Bloqueadores beta adrenoreceptores</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>51150</termId><termName>Bloqueadores beta (Farmacología)</termName><termType>ND</termType></relation></term>  </Zthes>