Betz, Marian E.
Ranney, Megan L.
Knoepke, Christopher E.
Johnson, Rachel L.
Pallin, Rocco
Miller, Matthew
Wintemute, Garen J.
Article History
First Online: 13 June 2019
Compliance with Ethical Standards
: The Colorado Multiple Institutional Review Board approved this study.
: The authors declare that they do not have a conflict of interest.
: Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the funding agencies. No sponsor had any direct involvement in study design, methods, subject recruitment, data collection, analysis, or manuscript preparation.
Free to read: This content has been made available to all.