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Article History

First Online: 23 April 2018

Compliance with Ethical Standards

:

: The authors declare that there are no conflicts of interest.

: The studies were approved by institutional Ethics Committees. All procedures performed 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.

: The participants’ legal representatives had provided written informed consent for their involvement in study 1 and study 2.

: The authors alone are responsible for the content and writing of the article.