Pereira, H. G., S. Takimoto, and L. A. Ribeiro do Valle. “The Use of Complement Fixation and Immunodiffusion Tests on the Diagnosis of Influenza”. Revista do Instituto de Medicina Tropical de São Paulo 12, no. 3 (June 15, 1970): 211–216. Accessed June 30, 2024. https://revistas.usp.br/rimtsp/article/view/199667.