Document is current

Article History

Received: 12 June 2019

Accepted: 12 September 2019

First Online: 24 October 2019

Compliance with ethical standards

:

: Granters had no influence on collection, analysis, or interpretation of data.

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

: 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.

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