1. Department of Obstetrics and Gynecology, Prenatal and Preimplantation Genetic Diagnosis, Fetal Therapy , Microcitemico Pediatric Hospital “A. Cao” , Cagliari , Sardinia , Italy
2. Department of Obstetrics and Gynecology , Zucker School of Medicine at Hofstra/Northwell and Lenox Hill Hospital , New York , NY , USA