Full text: Available Index: IMSEAR (South-East Asia) Main subject: Pneumonia, Viral / Severity of Illness Index / Brazil / Female / Humans / Male / Infant, Newborn / Confidence Intervals / Child / Child, Preschool Type of study: Diagnostic study / Etiology study / Incidence study / Observational study / Prognostic study / Risk factors Country/Region as subject: South America / Brazil Language: English Journal: Indian Pediatr Year: 2001 Type: Article