Einarsdottir, S., Martner, A., Nicklasson, M., Wiktorin, H. G., Arabpour, M., Törnell, A., Vaht, K., Waldenström, J., Ringlander, J., Bergström, T., Brune, M., Hellstrand, K., Ljungman, P. and Lagging, M. (2022) “Reduced immunogenicity of a third COVID-19 vaccination among recipients of allogeneic hematopoietic stem cell transplantation”, Haematologica. Pavia, Italy, 107(6), pp. 1479-1482. doi: 10.3324/haematol.2021.280494.