SCIENCEDIRECT is a website which provides subscription-based access to a large database of scientific and medical research. It hosts over 12 million pieces of content from 3,500 academic journals and 34,000 e-books . The journals are grouped into four main sections: _Physical Sciences and Engineering_, _Life Sciences_, _Health Sciences_, and _Social Sciences and Humanities_. Article abstracts are freely available, but access to their full texts (in PDF and, for newer publications, also HTML ) generally require a subscription or pay-per-view purchase.
* 1 Background * 2 See also * 3 References * 4 Further reading * 5 External links
* ^ "ScienceDirect.com WHOIS, DNS, & Domain Info - DomainTools". _ WHOIS _. Retrieved 2016-07-23. * ^ "ScienceDirect". Retrieved 17 February 2016. * ^ Reller, Tom. "2014 RELX Annual Reports and Financial Statements" (PDF). _RELX Group_. RELX Group. Retrieved 17 February 2016. * ^ Giussani, Bruno (4 March 1997). "Building the World\'s Largest Scientific Database". _ New York Times _. Retrieved 14 March 2014.
* Thomas G. De Petro. "