1 Obstetrics and Gynecology Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; Department of Metabolism, Digestion and Reproduction, Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom. Electronic address: andrea.dallasta1@gmail.com.
2 Obstetrics and Gynecology Unit, Department of Medicine and Surgery, University of Parma, Parma, Italy.