Dean and Professor, School of Medical and Health Sciences Fooyin University
Department of Endocrinology, Diabetes and Metabolism, Athens University, Diabetes and Metabolism, Athens University
Assistant Professor, Department of Internal Medicine, Keio University
Chair-Professor of Medical Research , Chang Jung Christian University
Professor , Democritus University of Thrace
Professor of Internal Medicine and Endocrinology , School of Medicine, Suez Canal University
Scientific Associate, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University of Belgrade
Professor, Department of Internal Medicine, Diabetes and Metabolic Diseases,, Faculty of Medicine - University of Strasbourg
Medical Faculty, Department of Endocrinology and Metabolism, Trakya University
Associate Professor, Department of Epidemiology & Biostatistics, Georgia State University
Professor, Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine
Director, Cardiometabolic Research Institute, Houston
Postdoctoral Research Associate, Section of Endocrinology, Diabetes and Metabolism, University of Illinois at Chicago