<entrez:hasLink>
<entrez:Link rdf:about="http://rdf.ncbi.nlm.nih.gov/entrez/link/pubmed_omim_bookrecords">
<entrez:description>OMIM records in this citation</entrez:description>
</entrez:Link>
</entrez:hasLink>
It seems to me at the very least, this should include the name of the successor database; probably the predecessor also, because it might be useful to have a links document that consists of only (an XML form of the catalog of all Entrez links.)
At /data/pubmed?format=rdf:
It seems to me at the very least, this should include the name of the successor database; probably the predecessor also, because it might be useful to have a links document that consists of only (an XML form of the catalog of all Entrez links.)