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First Online: 17 December 2019

Compliance with Ethical Standards

:

: The author declares no conflict of interest.

: The facts and views in the manuscript are mine and I am totally responsible for authenticity, validity and originality. I also declare that this manuscript is my original work, and I have not copied from anywhere else. There is no plagiarism in my manuscript.

: I undertake and agree that the manuscript submitted to your journal has not been published elsewhere and has not been simultaneously submitted to other journals.