Souza VA, Moraes JC, Sumita LM, et al. Prevalence of rubella antibodies in a non-immunized urban population, São Paulo, Brazil . Rev. Inst. Med. Trop. São Paulo. 1994;36(4):373-376. Accessed June 26, 2024. https://revistas.usp.br/rimtsp/article/view/29180