[1]
A. J. Vaz, E. M. Guerra, L. C. C. Ferratto, L. A. S. de Toledo, and R. S. de Azevedo Neto, “ Positive sorology of syphilis, toxoplasmosis and Chagas’ disease in pregnant women on their first visit to State Health Centes in a metropolitan area, Brazil ”, Rev. saúde pública, vol. 24, no. 5, pp. 373–379, Oct. 1990, doi: 10.1590/S0034-89101990000500004.