1. Clinical and Hospital Center “Bežanijska Kosa”, Autoput s/n, Medical Faculty, University of Belgrade, 4/2 Dr. Subotića Starijeg, 11000 Belgrade, Serbia
2. Norwich Medical School, Bob Champion Building, James Watson Road, University of East Anglia, Norwich Research Park, Norwich NR4 7UQ, UK
3. ABAKUS MEDICO d.o.o., Diagnostični Center Rogaška, Prvomajska 29, 3250 Rogaška Slatina, Slovenia
4. 2nd Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania