OSTADGAVAHI, Ali Toloue et al. Heterologous immunization with Covishield and Pfizer vaccines against SARS-CoV-2 elicits a robust humoral immune response. The Journal of Infection in Developing Countries, [S. l.], v. 15, n. 05, p. 653–656, 2021. DOI: 10.3855/jidc.15368. Disponível em: https://www.jidc.org/index.php/journal/article/view/34106888. Acesso em: 25 apr. 2024.