1. Department of Obstetrics and Gynecology, Complejo Asistencial Universitario de Salamanca and IBSAL, Salamanca, Spain
2. Department of Genetics, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
3. Department of Pediatric Surgery, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
4. Department of Hematology, Complejo Asistencial Universitario de Salamanca and IBSAL, Salamanca, Spain