1. Clinic of Obstetrics and Gynecology, Diakonie‑Klinikum Schwäbisch Hall, D‑74523 Schwäbisch Hall, Germany
2. Department of Obstetrics and Gynecology, ‘Victor Babeș’ University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania
3. Clinic of Internal Medicine, Hohenloher Krankenhaus Öhringen, D‑74613 Öhringen, Germany
4. Medical Informatics and Biostatistics, ‘Victor Babeș’ University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania