1. Department of Experimental Medicine, Sapienza University of Rome, Italy (G.M.).
2. Department of Laboratory Medicine (G.M.), Fatebenefratelli Isola Tiberina, Gemelli Isola Hospital, Rome, Italy.
3. Fetal and Pediatric Cardiology Unit (V.R., R.R., L.O., G.P.), Fatebenefratelli Isola Tiberina, Gemelli Isola Hospital, Rome, Italy.
4. Neonatology and Neonatal Intensive Care Unit (V.R., R.R., G.P.), Fatebenefratelli Isola Tiberina, Gemelli Isola Hospital, Rome, Italy.