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Article History

Received: 18 January 2018

Accepted: 13 February 2018

First Online: 10 March 2018

Compliance with ethical standards

:

: The authors declared no potential conflict of interest with respect to the research, authorship, and/or publication of this article.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.

: Informed consent was obtained from the parents of the child included in the study.