Doctor Ernesto Guevara before he became “El Che Guevara”. His work in the General Hospital of Mexico. Revista Alergia México, [S. l.], v. 67, n. 2, p. 196–198, 2020. DOI: 10.29262/ram.v67i2.735. Disponível em: https://ojs.revistaalergia.mx/ojs/index.php/ram/article/view/735. Acesso em: 24 sep. 2026.