1. Department of Prosthodontics; Faculty of Dentistry; University of Szeged; Szeged Hungary
2. Department of Obstetrics and Gynecology; Medical Faculty; University of Szeged; Szeged Hungary
3. Department of Obstetrics and Gynaecology; Medical School; University of Pécs; Pécs Hungary
4. Department of Obstetrics and Gynaecology; Blekinge Hospital; Karlskrona Sweden
5. Department of Periodontology; Faculty of Dentistry; University of Szeged; Szeged Hungary
6. Department of Prosthodontics; Department of Dentistry, Oral and Maxillofacial Surgery; University of Pécs Medical School; Pécs Hungary