Article History
Received: 30 May 2018
Accepted: 3 April 2019
First Online: 8 May 2019
Ethics approval and consent to participate
: The Institutional Review Board (IRB) of the University of Idaho reviewed and certified that the protocol was exempt from requiring informed consent in the 2010 study. For the 2012–16 data that were not collected by the investigators, the IRB determined this study did not meet the definition of human subjects research (data provided had no identifiers and the investigators could not access the identity of the respondents), so the study did not require IRB oversight or the requirement for obtaining informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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