Within bibliographic references and contributor groupings, this element designates unnamed individuals (typically indicated in print with the text “et al.”).
This DTD allows the <etal> element to be treated as empty, that is, the element has no content or to have text content such as “Associates, co-workers, and colleagues”. This rare element is typically used by stylesheets to generate text such as “et al.”“ or “and others”.
<!ELEMENT etal %etal-model; >
Any combination of:
... <ref id="bid.1651"> <label>1</label> <citation> <person-group> <name><surname>McKusick</surname> <given-names>VA</given-names></name> </person-group> <etal>et al.</etal> <source>Mendelian Inheritance in Man</source> <edition>12th ed.</edition> <publisher-loc>Baltimore</publisher-loc> <publisher-name>Johns Hopkins University Press</publisher-name> <year>1998</year> </citation> </ref> ...