Open access (OA) refers to freely available, digital, online information. Open access scholarly literature is free of charge and often carries less restrictive copyright and licensing barriers than traditionally published works, for both the users and the authors. 

While OA is a newer form of scholarly publishing, many OA journals comply with well-established peer-review processes and maintain high publishing standards. For more information, see Peter Suber's overview of Open Access: http://legacy.earlham.edu/~peters/fos/overview.htm.

Hamedan University of Medical Sciences & Farname Inc publishes Gold OA journals and books, and we work with publishing partners such as learned societies to develop OA for different communities. We also support Plan S, social sharing, and Green OA (also called Green archiving) across our journals and books programs, allowing authors to deposit content in PubMed Central, other institutional and subject-specific repositories, and commercial social sharing sites.