Shaw, R H, Liu, X, Stuart, A S V, Greenland, M, Aley, P K, Andrews, N J, Finn, A & Lazarus, R & et, A 2022, ' Effect of priming interval on reactogenicity, peak immunological response, and waning after homologous and heterologous COVID-19 vaccine schedules : exploratory analyses of Com-COV, a randomised control trial ', Lancet Respiratory Medicine, vol. 10, no. 11, pp. 1049-1060 . https://doi.org/10.1016/S2213-2600(22)00163-1
Lancet (London, England) Snape, M D 2021, ' Safety and immunogenicity of heterologous versus homologous prime-boost schedules with an adenoviral vectored and mRNA COVID-19 vaccine (Com-COV) : a single-blind, randomised, non-inferiority trial ', Lancet, vol. 398, no. 10303, pp. 856-869 . https://doi.org/10.1016/S0140-6736(21)01694-9