1 Department of Obstetrics and Gynecology, Helios Dr. Horst-Schmidt-Kliniken Wiesbaden, Wiesbaden (Drs. M. Eichbaum, Asrar, and Klee); Department of Obstetrics and Gynecology, University of Frankfurt Medical School, Frankfurt (Dr. C. Eichbaum), Germany.
2 Department of Obstetrics and Gynecology, Helios Dr. Horst-Schmidt-Kliniken Wiesbaden, Wiesbaden (Drs. M. Eichbaum, Asrar, and Klee); Department of Obstetrics and Gynecology, University of Frankfurt Medical School, Frankfurt (Dr. C. Eichbaum), Germany. Electronic address: michael.eichbaum@helios-gesundheit.de.