Shaw, R., Greenland, M., Stuart, A., Aley, P., Andrews, N., Cameron, J., Charlton, S., Clutterbuck, E., Collins, A., Darton, T., Dinesh, T., Duncan, C., Faust, S., Ferreira, D., Finn, A., Goodman, A., Green, C., Hallis, B., Heath, P., Hill, H., Lambe, T., Libri, V., Lillie, P., Morey, E., Mujadidi, Y., Payne, R., Plested, E., Provstgaard-Morys, S., Ramasamy, M., Ramsay, M., Read, R., Robinson, H., Screaton, G., Singh, N., Turner, D., Turner, P., White, R., Nguyen-Van-Tam, J., Liu, X., Snape, M. & Com-COV2 Study Group 2023, 'Persistence of immune response in heterologous COVID vaccination schedules in the Com-COV2 study – A single-blind, randomised trial incorporating mRNA, viral-vector and protein-adjuvant vaccines', Journal of Infection. https://doi.org/10.1016/j.jinf.2023.03.027