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