Friedrich, F., A. M. B. Filippis, and H. G. Schatzmayr. “ Sabin-Related Poliovirus Vaccine Strains Isolated from Transverse Myelitis Cases in Brazil ”. Revista do Instituto de Medicina Tropical de São Paulo 37, no. 6 (December 1, 1995): 543–545. Accessed June 26, 2024. https://revistas.usp.br/rimtsp/article/view/29326.