1. Forschergruppe Diabetes e.V. am Helmholtz Center Munich, Neuherberg, Germany
2. VTT Technical Research Centre of Finland, Espoo, Finland
3. Institute of Diabetes Research, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
4. Deutsche Forschungsgemeinschaft (DFG) Center for Regenerative Therapies Dresden (CRTD)-Cluster of Excellence, Biotechnologisches Zentrum, Dresden, Germany