1. Department of Therapeutic Research and Medicines Evaluation; Istituto Superiore di Sanità; Rome Italy
2. Department of Infectious Diseases; Catholic University; Rome Italy
3. Department of Obstetrics and Neonatology; Città della Salute e della Scienza Hospital and University of Turin; Turin Italy
4. Department of Neurosciences; Reproductive and Dentistry Science; University Federico II; Naples Italy
5. Department of Obstetrics and Gynaecology; IRCCS Policlinico San Matteo; University of Pavia; Pavia Italy
6. INMI Lazzaro Spallanzani; Rome Italy
7. Department of Obstetrics and Gynaecology; University of Bari; Bari Italy
8. Institute for Maternal and Child Health; IRCCS Burlo Garofolo; Trieste Italy
9. Department of Infectious Diseases; IRCCS Policlinico San Matteo; University of Pavia; Pavia Italy
10. Department of Obstetrics and Gynaecology; DMSD San Paolo Hospital Medical School; University of Milan; Milan Italy