<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>19107</termId><termName>parasites</termName><termType>PT</termType><termCreatedDate>0000-00-00 00:00:00</termCreatedDate><relation><relationType>BT</relationType><termId>18885</termId><termName>invertebrates</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>19158</termId><termName>parasitology</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>18958</termId><termName>helminths</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>20085</termId><termName>protozoa</termName><termType>PT</termType></relation></term>  </Zthes>