1. Department of Psychiatry, Referral Centre for Stress-Related Disorders of the Ministry of Health, Centre University Hospital Dubrava, Avenija Gojka Šuška 6, 10000 Zagreb, Croatia
2. Clinical Hospital Centre Zagreb, Psychiatric Clinic, Kispaticeva 12, 10000 Zagreb, Croatia
3. Department for Chemistry and Biochemistry, School of Medicine, Salata 3, 10000 Zagreb, Croatia
4. Special Hospital Radiochirurgia, Ulica dr. Franje Tuđmana 4, 10431 Sveta Nedjelja, Croatia
5. Hematology Department, University Hospital Dubrava, Av. Gojka Suska 6, 10000 Zagreb, Croatia
6. School of Medicine, University of Zagreb, Salata 3, 10000 Zagreb, Croatia
7. University of Applied Health Sciences in Zagreb, Mlinarska Street 38, 10000 Zagreb, Croatia