Folgosa, E., Osman, N. B., Gonzalez, C., Hägerstrand, I., Bergström, S., & Ljungh, A. (1996). Syphilis seroprevalence among pregnant women and its role as a risk factor for stillbirth in Maputo, Mozambique.

Folgosa, E., N B. Osman, C. Gonzalez, I. Hägerstrand, S. Bergström, ja A. Ljungh. Syphilis Seroprevalence Among Pregnant Women and Its Role As a Risk Factor for Stillbirth in Maputo, Mozambique. 1996.

Folgosa, E., et al. Syphilis Seroprevalence Among Pregnant Women and Its Role As a Risk Factor for Stillbirth in Maputo, Mozambique. 1996.