1. Clinic оf Hematology Clinical Center оf Vojvodina Novi Sad Serbia
2. Clinic of Anesthesia Intensive Care and Pain Therapy, Clinical Center оf Vojvodina Novi Sad Serbia
3. Clinic of Gynecology and Obstetrics Clinical Center оf Vojvodina Novi Sad Serbia
4. Department of Internal Medicine, Faculty оf Medicine University оf Novi Sad Novi Sad Serbia
5. Department of Gynecology and Obstetrics, Faculty оf Medicine University оf Novi Sad Novi Sad Serbia