Received: 21 November 2018
Accepted: 19 June 2019
First Online: 2 July 2019
Ethics approval and consent to participate
: This study was approved by and received exempt status from the North Dakota State University IRB Board. Participants were required to read a consent statement and provide written agreement to participate prior to beginning the survey. Confidentiality was assured through the consent statement.
: Not applicable.
: The authors declare that they have no competing interests.