<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31392494</termId><termName>hearing aids</termName><termType>PT</termType><termNote><![CDATA[ Compact electronic amplifiers worn to improve one's hearing, usually placed in or behind the ear. ]]></termNote><termCreatedDate>2026-03-30 20:45:33</termCreatedDate><relation><relationType>UF</relationType><termId>31392495</termId><termName>aid, hearing</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31392496</termId><termName>aids, hearing</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31392497</termId><termName>hearing aid</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31354338</termId><termName>equipment for personal hearing use</termName><termType>PT</termType></relation></term>  </Zthes>