Open Access Policy

This journal provides direct open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Its free availability on the public internet, allows any user to read, download, copy, distribute, print, search or link to the full text of this article, crawl it for indexing, pass it as data to software, or use it for any other lawful purpose, without financial, legal, or technical barriers other than those that are inseparable from gaining access to the internet itself.