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This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
As an open access journal, all of this journal content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.