1. Department of Pediatrics, Yale University, New Haven, Connecticut.
2. Neonatal Intensive Care Unit, Department of Woman's and Child's Health, University of Padova, Padova, Italy.
3. School of Medicine, Yale University, New Haven, Connecticut.
4. Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy.
5. Department of Information Engineering, University of Padova, Padova, Italy.
6. Harvard Medical School and Boston Children's Hospital, Division of Medicine Critical Care, Boston, Massachusetts.