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No fee is charged from the author or institution under any name.
There is no charge for publication in PEME for the authors; moreover, there are no submission charges or page charges. All interested readers can also read, download, and/or print open access articles at no cost.
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The work is licensed under the terms of Creative Commons Attribution 4.0 International License.
The work is licensed under the terms of Creative Commons Attribution 4.0 International License.
