[1]
R. U. Hutzler, “ Neutralizing antibodies for poliovirus in newborn children sera before and after mass immunization of Brazilian population from one to five years old, São Paulo — Brazil, 1980 ”, Rev. Inst. Med. Trop. São Paulo, vol. 26, no. 2, pp. 78–82, Apr. 1984, Accessed: May 27, 2024. [Online]. Available: https://www.revistas.usp.br/rimtsp/article/view/87257