Funding for this research was provided by:
National Institute of Diabetes and Digestive and Kidney Diseases (U54 DK083908)
Received: 15 October 2019
Accepted: 23 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board #13–115351 at the Mayo Clinic, Rochester Minnesota. Written consent was obtained from study participants.
: Written consent was obtained from study participants to publish specific images or clinical details.
: The authors declare no conflicts of interest or competing interests. This research is involving human subjects.