Dear Dave,
Please see this
http://www.google.com/search?q=steri...09%2CGGIC%3Aen for top supplemental page results.
Normally the supplemented pages will not be shown in usual keyword search results eventhough it has relevance to the keyword(for Example - sterile petri dishes) and supplemented pages will be used to fill the result pages for some rare combination keywords.
with Regards
K.Vellaisamy