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layout-grid-mode:char;mso-layout-grid-align:none"><span lang="EN-US" style="font-size: 12pt; line-height: 150%; font-family: 'Book Antiqua', serif;">All articles published in journals owned by the Baishideng Publishing Group (<em>Baishideng</em>) represent the views and opinions of their authors, and not the views, opinions or policies of the <em>Baishideng</em>, except where otherwise explicitly indicated.</span></p> </div> </div> <div class="bpgfile"> <ul> </ul> </div> </div> </div> </div> <div class="down cl"> <div class="helpdesk cl"> <a href="https://www.f6publishing.com/HelpDesk" target="_blank">Write to the Help Desk</a> </div> <div class="subfooter cl"> <ul> <li> <b>ALL AUTHOR RESOURCES</b> </li> <li> <a href="https://www.wjgnet.com/bpg/GerInfo/312" target="_blank">Appeals and Complaints</a> </li> <li> <a href="http://www.wjgnet.com/bpg/gerinfo/242" target="_blank">Article Processing Charge</a> </li> <li> <a href="http://www.wjgnet.com/bpg/gerinfo/189" target="_blank">Common 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