Yasuda, Paulo H., Elena E. Sakata, Maria Aparecida Shikanai-Yasuda, Silvio de Arruda Vasconcelos, Eliete C. Romero, Marcos Vinícius da Silva, and Solange Carrasco. 1991. “ Evaluation of Counterimmunoeletrophoresis With the Serovars Icterohaemorrhagiae and Patoc Antigens in the Diagnosis of Human Leptospirosis ”. Revista Do Instituto De Medicina Tropical De São Paulo 33 (6): 497-502. https://revistas.usp.br/rimtsp/article/view/28878.