1. Faculty of Medicine, University of Osijek, Osijek, Croatia,
2. Department of Transfusion Medicine, Osijek University Hospital Centre, Osijek, Croatia,
3. Department of Obstetrics and Gynaecology, Sligo Regional Hospital, Sligo, Ireland,
4. Department of Internal Medicine, and
5. Department of Gynaecology and Obstetrics, Osijek University Hospital Centre, Osijek, Croatia