TY - JOUR T1 - Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials JO - The Lancet UR - http://eprints.whiterose.ac.uk/171542/ PY - 2021/03/06 AU - Voysey M AU - Costa Clemens SA AU - Madhi SA AU - Weckx LY AU - Folegatti PM AU - Aley PK AU - Angus B AU - Baillie VL AU - Barnabas SL AU - Bhorat QE AU - Bibi S et al ED - DO - DOI: 10.1016/s0140-6736(21)00432-3 PB - Elsevier BV VL - 397 IS - 10277 SP - 881 EP - 891 Y2 - 2024/09/19 ER -