1. Internist-diabetologist Vuk Vrhovac Institute of Diabetes, Endocrinology and Metabolic Diseases, School of Medicine, University of Zagreb
2. Internist-diabetologist Vice-Director, Vuk Vrhovac Institute of Diabetes, Endocrinology and Metabolic Diseases, and Professor, School of Medicine, University of Zagreb
3. Vuk Vrhovac Institute of Diabetes, Endocrinology and Metabolic Diseases, and Professor, School of Medicine, University of Zagreb, Zagreb, Yugoslavia