1. Fetal Diagnosis and Treatment Program, Garrahan Children's Hospital, Buenos Aires, Argentina.
2. Surgical Simulation Program, Garrahan Children's Hospital, Buenos Aires, Argentina.
3. Department of Neurosurgery, Garrahan Children's Hospital, Buenos Aires, Argentina.
4. Department of Neonatology, Garrahan Children's Hospital, Buenos Aires, Argentina.
5. Department of Pediatric Surgery, Garrahan Children's Hospital, Buenos Aires, Argentina.