<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>18746</termId><termName>neurons</termName><termType>PT</termType><termCreatedDate>0000-00-00 00:00:00</termCreatedDate><relation><relationType>BT</relationType><termId>18745</termId><termName>nerve tissue</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>18747</termId><termName>motor neurons</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>18748</termId><termName>nerve fibers</termName><termType>PT</termType></relation></term>  </Zthes>