Updates are available Correction dated 2020-10-21

Article History

Received: 21 January 2020

Accepted: 31 March 2020

First Online: 7 April 2020

Change Date: 21 October 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via the original article.

Ethics approval and consent to participate

: Informed written consent was obtained from all participants and their parents, whereas the participation was entirely voluntary and confidentiality assured. The study was also performed following the Declaration of Helsinki and approved by the Human Ethics Committee of X University of Medical Sciences.

: Not applicable.

: The authors declare that they have no competing interests.