1. Faculty of Medicine, Belgrade + Clinical Centre of Serbia, Institute for Endocrinology, Diabetes and Metabolic Diseases, Laboratory for Pancreatic Islet Culture, Belgrade
2. Faculty of Medicine, Belgrade + Clinical Centre of Serbia, Surgical Clinic, Institute of Digestive Diseases, Belgrade
3. Clinical Centre of Serbia, Institute for Endocrinology, Diabetes and Metabolic Diseases, Laboratory for Pancreatic Islet Culture, Belgrade