1. Department of Pediatrics, School of Medicine, Universidad Nacional de Colombia; Department of Pediatric Pulmonology and Pediatric Critical Care Medicine, School of Medicine, Universidad El Bosque; Research Unit, Military Hospital of Colombia,
Bogota, Colombia
2. Department of Internal Medicine, Clínica Reina Sofía,
Bogota, Colombia
3. Departments of Pediatrics and Family Medicine, School of Medicine, Pontificia Universidad Catolica de Chile,
Santiago, Chile