<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>12534</termId><termName>Periodontitis</termName><termType>TT</termType><termCreatedDate>2014-09-15 19:53:54</termCreatedDate><relation><relationType>UF</relationType><termId>12535</termId><termName>Pericementitis</termName><termType>ND</termType></relation></term>  </Zthes>