To collect data on hospitalization for respiratory syncytial virus (RSV) infections and presumptive risk factors for rehospitalization among premature infants in Spain.
Rehospitalization because of respiratory syncytial virus infection in premature infants younger than 33 weeks of gestation: a prospective study. IRIS Study Group.
Service of Pediatrics, of Hospital Clínic-Maternitat, Institut Clínic de Ginecologia Obstetricia i Neonatologia, Barcelona, Spain. xcarbone@.medicina.ub.es