1. CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
2. Division of Clinical Chemistry and Pathobiochemistry (Central Laboratory), University Hospital Tuebingen, Tuebingen, Germany
3. Paul Langerhans Institute Tübingen (Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen), Tübingen, Germany
4. Centre for Bioinformatics (ZBIT), University of Tuebingen, Tuebingen, Germany
5. Helmholtz-Center Munich—German Research Center for Environmental Health, Institute for Ecological Chemistry, Ingoldstaedter Landstraβe, Neuherberg, Germany
6. Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Medicine, Nephrology and Clinical Chemistry, University Hospital Tübingen, Tuebingen, Germany