Funding for this research was provided by:
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK064284)
National Institute of General Medical Sciences (P20GM113125)
University of Delaware Research Fund (16A01366)
Received: 7 November 2018
Accepted: 5 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Written consent was obtained from all participants. Procedures were approved by the University of Missouri-Kansas City’s Institutional Review Board for the protection of human subjects and were performed in accordance with the ethical standards as per the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Not applicable.
: Freda Patterson serves as an Associated Editor for BMC Public Health.The other authors declare that they have no competing interests.