1Roberton DM, Marshall H, Dinah L, et al. Immune responses to vaccines in premature infants. Expert Rev Vaccines, 2004,3:343-347.
2Saari T. Immunization of preterm and low birth-weight infants.Pediatrics, 2003, 112:193-198.
3Esposito S, Faldella G, Giammanco A, et al. Long-term pertussis-specific immune responses to a combined diphtheria,tetanus, tricomponent acellular pertussis and hepatitis B vaccine in pre-term infants. Vaccine, 2002,20: 2928-2932.
