DÍAZ ORTEGA, J. L. Manuela Sáenz, Emil von Behring la difteria y otros héroes. Ciencias, [S. l.], v. 99, n. 099, 2011. Disponível em: https://journals.unam.mx/index.php/cns/article/view/22894. Acesso em: 3 may. 2024.