Homologous and heterologous boosting of the ChAdOx1-S1-S COVID-19 vaccine with the SCB-2019 vaccine candidate: a randomized, observer-blinded, controlled, phase 2 study
bioRxiv (2022) - Comments
doi: 10.1101/2022.05.31.22275010 

Sue Ann Costa Clemens, Eveline Pipolo Milan, Eduardo Sprinz, José Cerbino Neto, Filippo Pacciarini, Ping Li, Hui-Ling Chen, Igor Smolenov, Andrew Pollard, Ralf Clemens