1. Associate Cochrane Centre; Instituto Universitario Hospital Italiano de Buenos Aires; Buenos Aires Argentina
2. Faculty of Medicine; Lund University; Lund Sweden
3. Research Department; Instituto Universitario Hospital Italiano; Buenos Aires Argentina
4. Central Library; Instituto Universitario Hospital Italiano de Buenos Aires; Buenos Aires Argentina
5. Fundación INFANT; Buenos Aires Argentina
6. Pediatric Stepdown Unit; Hospital Italiano de Buenos Aires; Buenos Aires Argentina