A Digital Object Identifier (DOI), is an ID number for a specific item such as a journal article. It's a shortcut: instead of needing to write out a full citation for an item, you can just use the DOI to keep track of it. Some citation styles include DOIs in article references, and you can search for articles using just the DOI. You can usually find a DOI at the top of an article, with the title, author and other journal-related information.
Step-By-Step Instructions for Finding Full Text Articles Using DOI.org [via MCPHS' authentication system]
If you use an article's DOI to find the full text using the MCPHS DOI.org search box, you will go directly to the publisher's site. As this link goes through our authentication system, you should automatically be recognized as an MCPHS user. If we have access to the article, you will be able to access the full text!