1. Consultant, Department of Orthopedics, Mayo Clinic and Mayo Foundation; Assistant Professor of Orthopedics, Mayo Medical School; Rochester, Minnesota.
2. Chief Resident Associate in Orthopedics, Mayo Graduate School of Medicine, Rochester, Minnesota.
3. Statistician, Section of Biostatistics, Mayo Clinic and Mayo Foundation, Rochester, Minnesota.
4. Statistician, Section of Biostatistics, Mayo Clinic and Mayo Foundation; Assistant Professor of Biostatistics, Mayo Medical School, Rochester, Minnesota.