Document is current

Article History

Received: 8 August 2018

Accepted: 20 September 2018

First Online: 26 September 2018

Compliance with ethical standards

:

: The authors have no funding, financial relationships, or conflicts of interest to disclose.

: All procedures performed in studies involving human participants were done so in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from all individual participants included in the study.