Multidisciplinary, full text articles (including health, medicine and social sciences), newspapers, magazines, dissertations, working papers, and market reports
Pubmed is an interface used to search Medline, as well as additional biomedical content. Medline allows you to perform a more focused search. You will get slightly different results by searching in each database
Grey literature consists of varied types of material, produced on all levels of government, academics, business, and organisations, not controlled by commercial publishing