Document is current

Article History

Accepted: 9 October 2021

First Online: 2 November 2021

Declarations

:

: Ethical approval was not required because this manuscript did not deal with human/animal subjects research. We only reviewed the existing literature without involving human participants and/or animals.

: This study did not involve any human participants and/or animals.

: Since we only reviewed the existing literature without involving human participants and/or animals, we did not have informed consent.

: There are no potential conflicts of interest.