Respiratory syncytial virus in young children: community cohort study integrating serological surveys, questionnaire and electronic health records, Born in Bradford cohort, England... por Zylbersztejn, A, Pembrey, L, Goldstein, H, Berbers, G, Schepp, R, van der Klis, F, Sande, C, Mason, D, Wright, J, Smyth, R, Hardelid, P