<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31306133</termId><termName>poisonous substance</termName><termType>PT</termType><termNote><![CDATA[ Material that causes illness or death when absorbed, inhaled, or ingested by a living organism. ]]></termNote><termCreatedDate>2026-03-30 20:22:22</termCreatedDate><relation><relationType>UF</relationType><termId>31306134</termId><termName>poisonous substances</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306135</termId><termName>substance, poisonous</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306136</termId><termName>toxic substance</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306137</termId><termName>toxic substances</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298940</termId><termName>materials by property</termName><termType>PT</termType></relation></term>  </Zthes>