Other Planned Search Modes
Use words from abstracts or full text, not just title words? (need NLP techniques and XML tagging)
Use MeSH instead of title words to connect lits?
Use PubMed “related articles” to expand queries until A and C lits overlap, then examine the overlap?
Use citation information from articles?
Link medical with non-medical literature? Or with supplementary information, web sites?
Link authors in each lit? “6 degrees of separation”; need to partition Medline into distinct authors to do this
Perform A-B-C with gene sequences? i.e. given two sequences A and C, find all B that overlap with both.