MyJournals.org - Science - 'IJMS, Vol. 24, Pages 9753: Potentiating the Cross-Reactive IFN-γ T Cell and Polyfunctional T Cell Responses by Heterologous GX-19N DNA Booster in Mice Primed with Either a COVID-19 mRNA Vaccine or Inactivated Vaccine' (International Journal of Molecular Sciences)