<?xml version="1.0" encoding="UTF-8"?>
<XML><RECORDS>
<RECORD>
	<REFERENCE_TYPE>0</REFERENCE_TYPE>
	<AUTHORS>
		<AUTHOR>Zartarian, V. G.</AUTHOR>
		<AUTHOR>Ott, W. R.</AUTHOR>
		<AUTHOR>Duan, N. H.</AUTHOR>
	</AUTHORS>
	<YEAR>1997</YEAR>
	<TITLE>A quantitative definition of exposure and related
                   concepts</TITLE>
	<SECONDARY_TITLE>Journal of Exposure Analysis and Environmental
                   Epidemiology</SECONDARY_TITLE>
	<VOLUME>7</VOLUME>
	<PAGES>411-437</PAGES>
</RECORD>
</RECORDS></XML>