1. Institute
of Biochemistry I, University Hospital Jena, Nonnenplan 2-4, 07740 Jena, Germany
2. Clinic
of Neurology, University Hospital Jena, Erlanger Allee 101, 07740 Jena, Germany
3. Department
of Nephrology and Rheumatology, University Medicine Göttingen, Robert-Koch Str. 40, 37075 Göttingen, Germany