1. Departments of Endocrinology (F.C., B.A.), Medical University Hospital Wuerzburg, 97080 Wuerzburg, Germany
2. Cardiology (H.S., K.H., S.F., A.L., S.B., A.W.B.), Medical University Hospital Wuerzburg, 97080 Wuerzburg, Germany
3. Clinic III for Internal Medicine (R.H.G.S., B.B.), Laboratory of Muscle Physiology and Molecular Cardiology, University of Cologne, 50931 Cologne, Germany