Funding for this research was provided by:
National Institute of Diabetes and Digestive and Kidney Diseases (T32 DK08325010, R01DK104348)
National Center for Advancing Translational Sciences (UL1TR000114)
Centers for Disease Control and Prevention (U48DP005022-01S1)
Received: 6 June 2019
Accepted: 7 January 2020
First Online: 4 February 2020
Ethics approval and consent to participate
: This study was approved by the Intuitional Review Board at the University of Minnesota (study ID 1410S54204) on December 5, 2013. Human subjects involved in this research were consented verbally and provided a study information sheet. Verbal consent only was required because of the study’s low risk and the lack of private information collected; the verbal consent process was approved by the IRB.
: Not applicable.
: The authors declare that they have no competing interests.