1. Division of General Internal Medicine, MN, USA
2. Division of Biomedical Statistics and Informatics
3. Institute for Community Medicine, Mayo Clinic, Rochester, MN, USA
4. Center for Oral Health, Universitätsmedizin Greifswald, Germany
5. Greifswald, and University of Veterinary Medicine Hannover, Germany
6. Emeritus Member, Division of General Internal Medicine, MN, USA