<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>29279</termId><termName>Radioisótopos en biología</termName><termType>TT</termType><termCreatedDate>2014-09-15 20:28:43</termCreatedDate></term>  </Zthes>