Fig. 1From: Respiratory Syncytial Virus-associated hospitalization in premature infants who did not receive palivizumab prophylaxis in Italy: a retrospective analysis from the Osservatorio StudyNumber of children from the “Osservatorio” database that were firstly analyzed and then included in the sets of analysis, to evaluate the characteristics and the distribution of RSV positivity (RSV+) in hospitalized and not hospitalized children belonging to different wGA groupsBack to article page