1. National Network of Congenital Abnormalities Argentina (RENAC) under the National Center of Medical Genetics (CENAGEM); Buenos Aires City Argentina
2. National Institute of Human Viral Diseases “Dr. Julio I. Maiztegui” (INEVH), Pergamino; Buenos Aires Argentina
3. National Institute of Infectious Diseases “Dr. Carlos Malbrán” (INEI); Buenos Aires City Argentina
4. Neonatology Service, Dalmacio Velez Sarsfield Hospital; Ciudad Autónoma de Buenos Aires Argentina
5. Neonatology Service, Teodoro Alvarez Hospital; Ciudad Autónoma de Buenos Aires Argentina
6. Department of Neonatology; Instituto de Maternidad y Ginecología Nuestra Señora de las Mercedes; San Miguel de Tucumán Argentina
7. Neonatology Service, Materno Neonatal Hospital, Córdoba Capital; Córdoba Argentina