All of this journal content can be accessed directly based on the principle that making research must be accessible to all free to the public to support greater global knowledge exchange.

Due to an open-access journal which means all content is available free of charge without any fees that will be charged to individual users or institutions. Users are permitted to read, download, copy, distribute, print, search, or link to full-text articles in this journal without the need to ask permission from the publisher or author. This is in accordance with the Budapest Open Access Initiative

---

All manuscript in this journal is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.