1. Department of Laboratory Diagnostics, General Hospital Dubrovnik, Dubrovnik, Croatia
2. Department of Medical Biochemistry and Hematology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
3. Medical Biochemistry Laboratory, University Psychiatric Hospital Sveti Ivan, Zagreb, Croatia
4. Department of Clinical Chemistry, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
5. Department for Laboratory Diagnostics, University Hospital Center Zagreb, Zagreb, Croatia