1. Faculty of Medicine; Genoa Italy
2. Neonatology; Larner College of Medicine at the University of Vermont; Burlington Vermont USA
3. Department of Internal Medicine; General University Hospital of Patras; Patras Greece
4. Division of Neonatal-Perinatal Medicine, Department of Pediatrics; Larner College of Medicine at the University of Vermont; Burlington Vermont USA
5. Paediatrics, Department of Clinical Sciences Lund; Lund University, Skåne University Hospital; Lund Sweden
6. Cochrane Sweden, Department of Research and Education; Lund University, Skåne University Hospital; Lund Sweden