Rizzo, E. de ., Cardozo, B. S. ., Lascalla, D. L. ., Tuchiya, H. N. ., & Mendes, I. F. . (1982). The jet injection apparatus (ped-o-jet) for use in mass vaccination against measles - an effective procedure for its disinfection. Revista Do Instituto De Medicina Tropical De São Paulo, 24(5), 263-267. https://revistas.usp.br/rimtsp/article/view/196781