Evaluation of Two-Month Antibody Levels after Heterologous ChAdOx1-S/BNT162b2 Vaccination Compared to Homologous ChAdOx1-S or BNT162b2 Vaccination. - Barocci S; Orlandi C; Diotallevi A; Buffi G; Ceccarelli M; Vandini D; Carlotti E; Galluzzi L; Rocchi MBL; Magnani M; Casabianca A (Vaccines, 2022)