<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31340221</termId><termName>hexosamine</termName><termType>PT</termType><termNote><![CDATA[ The amino sugar derivative of the monosaccharide hexose in which the hydroxyl group is replaced with an amine group. ]]></termNote><termCreatedDate>2026-03-30 20:31:45</termCreatedDate><relation><relationType>BT</relationType><termId>31316785</termId><termName>sugar</termName><termType>PT</termType></relation></term>  </Zthes>