Should Bacillus Calmette–Guérin (BCG) vaccine be used in the prophylaxis of COVID-19?. Acta Medica Philippina, [S. l.], 2020. DOI: 10.47895/amp.v54i0.2566. Disponível em: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/2566. Acesso em: 9 apr. 2025.