The units of measure in which the size or length of a cited work is expressed (for example, a @units value might record “pages”, “minutes”, “seconds”, or “linear-feet”).
Used on Element: <size>
|Text, numbers, or special characters||Names the units of measure in which the size is expressed, for example, “MB”.|
|Restriction||This attribute is required; it must be provided if the element is used.|
... <ref> <mixed-citation publisher-type="gov" ><person-group person-group-type="author" ><string-name><surname>Norman</surname>, <given-names>John C</given-names></string-name>, <aff>Texas Heart Institute, Houston, TX</aff></person-group>. <gov>Report No.: NIH-N01-HV-5-3006-4-VI. Contract No. N01-HV-5-3006</gov>. <source>ALVAD: 1980. A comprehensive final report to NHLI</source>. Vol. <volume>1</volume>. <publisher-loc>Bethesda (MD)</publisher-loc>: <publisher-name>National Institutes of Health, National Heart and Lung Institute, Devices and Services Branch</publisher-name>; <month>01</month> <year iso-8601-date="1980-01">1980</year>. <size units="pages">340</size> p. Available from: NTIS, Springfield, VA; PB80-148810</mixed-citation> </ref> ...