PubMed (National Library of Medicine) This link opens in a new windowPubMed is a service provided by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine. PubMed specializes in reviews of clinical effectiveness research. NB: Choose "Log In" to create an account under MY NCBI, then Manage Filters, LinkOut and click on Libraries, find SCF and click on both boxes.