1. Neonatology Unit, Department of Woman and Child Health and Public Health Fondazione Policlinico Universitario “Agostino Gemelli” Rome Italy
2. Dipartimento di Scienze della Vita e Sanità Pubblica, Facoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy
3. Society for the Investigation of Early Pregnancy (SIEP) New York New York USA
4. Department of Obstetrics Gynecology & Reproductive Sciences University of Miami, Miller School of Medicine Miami Florida USA