Drazdienė N., Laan M., Zaikauskienė J. and Usonis V. (2018) “Respiratory syncytial virus infection in a selected sample of infants hospitalized for lower respiratory tract infection in Lithuania and Estonia”, Acta medica Lituanica, 24(4), pp. 191-198. doi: 10.6001/actamedica.v24i4.3614.