Immunogenicity of the DNA/Protein Combined Vaccine against COVID-19. - Borgoyakova MB; Karpenko LI; Merkulyeva IA; Shcherbakov DN; Rudometov AP; Starostina EV; Shanshin DV; Isaeva AA; Nesmeyanova VS; Volkova NV; Belenkaya SV; Volosnikova EA; et al. (Bulletin of experimental biology and medicine, 2022)