We can also "Explode" the Subject Heading.
If we donít Explode this Gram-Negative Aerobic Bacteria item,
all we get are two citations.
By Exploding, we see these and all terms
with citations related to Gram-Negative Aerobic Bacteria.
This way, the researcher doesnít need
to manually search for related items,
the system does this work instead.
Because itís impossible for a title to be cataloged
according to all possible related terms,
the system lets the researcher optionally
exploit the implicit relationships among terms.