Almeida, José Oliveira de. 1970. “Studies on the Complement-Fixation Test in Brucellosis. IV – Correlation Between Agglutination and Complement-Fixation Titers, Determined With Brucella Abortus Antigens, in Human Sera and in Sera from Inoculated Rabbits”. Revista Do Instituto De Medicina Tropical De São Paulo 12 (1): 55-63. https://revistas.usp.br/rimtsp/article/view/199571.