PubMed.gov is described as 'PubMed comprises more than 23 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites' and is a academic research tool in the education & reference category. There are more than 10 alternatives to PubMed.gov, not only websites but also apps for a variety of platforms, including iPhone, Android, Android Tablet and iPad apps. The best PubMed.gov alternative is Mendeley, which is free. Other great sites and apps similar to PubMed.gov are ResearchGate, Academia.edu, EasyBib and Crossref.
Pulls similar content in a slightly different way