1. Endocrine Research Unit (J.D.V., J.B., D.E.), Mayo School of Graduate Medical Education, Clinical Translational Research Center, Mayo Clinic, Rochester, Minnesota 55905;
2. Medizinische Klinik (M.B.), 80336 Munich, Germany
3. Department of Neurology (P.S.), Mayo School of Graduate Medical Education, Clinical Translational Research Center, Mayo Clinic, Rochester, Minnesota 55905;