Go to http://www.nnlm.nlm.nih.gov/mr/pdf/pubmed.pdf to view a chart comparing PubMed with ELHILL formulations. It's perfect for answering those "this is how I did it before, now how can I do the same thing in PubMed?" questions. The chart is in pdf format and may require you to install a plug-in to read it, if you don't already have the capability to view pdf documents in your Web browser. The chart was developed by Nancy Ralston and Molly Youngkin at the National Network of Libraries of Medicine, Midcontinental Region, at the University of Nebraska Medical Center.
For other helpful information about PubMed and IGM, please check out the National Network of Libraries of Medicine (NN/LM) Web site: http://www.nnlm.nlm.nih.gov/nnlm/online. This site contains links to information on using the NLM Web-based search engines (including the above mentioned chart) from the NN/LM and other institutions.