Medical University of Gdańsk, Medical University of Gdańsk, University of Vienna, Medical University of Graz, University of Innsbruck, University of Innsbruck, Tongji University - Department of Gynecology, Paracelsus Medical University Salzburg, Klinikum Klagenfurt am Wörthersee, Medical University of Gdańsk, affiliation not provided to SSRN, Medical University of Graz and Medical University of Gdańsk