1. Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Roma, Italia
2. Department of Development and Regeneration, KU Leuven, Belgium
3. Queen Charlotte’s and Chelsea Hospital, Imperial College, London, UK
4. Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
5. Università Cattolica del Sacro Cuore,Istituto di Clinica Ostetrica e Ginecologica, Roma, Italy
6. Department of Obstetrics and Gynaecology, Skåne University Hospital, Malmö, Sweden
7. Department of Clinical Sciences Malmö, Lund University, Lund, Sweden