1 Diabetes Center Bad Mergentheim, Research Institute of the Diabetes Academy (Forschungsinstitut der Diabetes Akademie - FIDAM), Mergentheim, Germany.
2 Department of Psychosomatic Medicine and Psychotherapy, University of Cologne, Cologne, Germany.
3 Department of Psychosomatic Medicine and Psychotherapy, LWL University Hospital of the Ruhr-University Bochum, Bochum, Germany.
4 Department of Psychosomatics and Psychotherapy of the Justus-Liebig-University Giessen and Philipps University Marburg, Marburg, Germany.
5 Research and Teaching Unit of Medical Psychology, Medical School, Hannover, Germany.
6 Joint practice Weimer/Tabakhtory-Fard; Marburg, Heidelberg, Germany.