Statistics from Altmetric.com
Competing interests None.
Ethics approval This study was conducted with the approval of the Institutional Review Boards of the Mayo Clinic and Olmsted Medical Center.
Provenance and peer review Not commissioned; externally peer reviewed.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.