Kostrzak, Anna, Blazej Meczekalski, Agnieszka Podfigurna, and Stefano Luisi. 2022. “A Revolution in Contraception: New Vaginal Ring With Progesterone and With Segesterone Acetate Ethinylestradiol, and Combined Oral Contraception With Estetrol”. European Gynecology & Obstetrics 4 (1). https://doi.org/10.53260/EGO.224012.