1. Department of Physiology/Endocrine; Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
2. Department of Traditional Chinese Medicine; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
3. Department of Experimental Diabetology; German Institute of Human Nutrition Potsdam-Rehbruecke; Nuthetal Germany