Document is current

Article History

Received: 22 November 2017

Accepted: 22 November 2017

First Online: 9 February 2018

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

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

: Informed consent was obtained from the participant included in the study.