also searches PubMedCentral papers, which are full text articles deposited to promote open access, and articles that are “in process” that is, prior to being indexed with MeSH terms, and articles submitted by publishers, “ahead of print.”
searches only Medline content
allows you to perform a more sophisticated search (proximity searching provided)
You will get slightly different results by searching in each database; you may find thousands more articles via PubMed
All Medline articles have been indexed with assigned MeSH terms. If you have a specific search you are doing you will get the closest, most specific match to your terms by searching in Medline.
So, to be totally thorough, you may want to search both!
1946-present from Ovid. International in scope, this is the primary source for access to international literature on bio-medicine, including allied health fields, communication disorders, biological and physical sciences, humanities, and information science as they relate to medicine and health care.....more.