1. Endocrinology and Metabolic Diseases; University Medical Center; Johannes Gutenberg University Mainz; Germany
2. Fraunhofer Institut für Biomedizinische Technik; St. Ingbert; Germany
3. Department of Bioengineering; College of Engineering and Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul; Korea
4. Section of Medical Physics; Department of Diagnostic and Interventional Radiology; University Medical Center; Johannes Gutenberg University; Mainz; Germany