<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>18886</termId><termName>sputum</termName><termType>PT</termType><termCreatedDate>0000-00-00 00:00:00</termCreatedDate><relation><relationType>BT</relationType><termId>18742</termId><termName>fluids and secretions</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>20078</termId><termName>cough</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>18827</termId><termName>mucus</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>18391</termId><termName>lung</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>18860</termId><termName>mouth</termName><termType>PT</termType></relation></term>  </Zthes>