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Article History

Received: 8 June 2019

Accepted: 24 November 2019

First Online: 28 November 2019

Compliance with ethical standards

:

: The authors declare that they have no potential conflicts of interest in preparation of this manuscript.

: The authors of this article declare that they have no potential conflicts of interests in the preparation or presentation of the contents of this manuscript. During the process of preparing this article, the authors did not involve in research that included human participants and/or animals.

: No informed consent was taken since this article is a narrative review of literature and not a primary research data on human subjects