Received: 29 April 2017
Revised: 12 October 2017
Accepted: 27 November 2017
First Online: 1 February 2018
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: This study was reviewed and approved by an institutional review board at both universities where this study took place prior to data collection. Moreover, all procedures performed in this study were in accordance with the ethical standards of our respective institutions and with the 1964 Declaration of Helsinki and its later amendments.
: Informed consent was obtained, voluntarily, from each study participant.