COPYRIGHT LICENSE AGREEMENTCopyright License Agreement • February 28th, 2019
Contract Type FiledFebruary 28th, 2019After consultation by the authors and Baishideng Publishing Group (BPG), the authors agree that if this manuscript is finally accepted for publication, the Copyright License Agreement will become effective immediately. Please note that the designation of co-first authors and co-corresponding authors is not permitted. Application for copyright license agreement will be made by written declaration of and attestation to the following: