<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>19750</termId><termName>Porfirinas</termName><termType>TT</termType><termCreatedDate>2014-09-15 20:06:44</termCreatedDate><relation><relationType>RT</relationType><termId>13785</termId><termName>Hemoglobina</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>10785</termId><termName>Porfiria</termName><termType>PT</termType></relation></term>  </Zthes>