TY - JOUR T1 - Estimating the potential health gain and cost consequences of introducing a pre-school DTPa pertussis booster into the UK child vaccination schedule. JO - Vaccine PY - 2002/03/15 AU - Stevenson M AU - Beard S AU - Finn A AU - Brennan A ED - DO - DOI: 10.1016/s0264-410x(02)00025-7 VL - 20 IS - 13-14 SP - 1778 EP - 1786 Y2 - 2025/06/22 ER -