1. Consultant, Section of Medicine, Mayo Clinic
2. Consultant, Section of Medicine, Mayo Clinic; Associate Professor of Medicine, Mayo Foundation, Graduate School, University of Minnesota
3. Consultant, Section of Medicine, Mayo Clinic; Instructor in Medicine, Mayo Foundation, Graduate School, University of Minnesota
4. Consultant, Section of Neurology, Mayo Clinic; Instructor in Neurology, Mayo Foundation, Graduate School, University of Minnesota
5. Consultant, Section of Medicine, Mayo Clinic; Professor of Medicine, Mayo Foundation, Graduate School, University of Minnesota