Dubón Méndez, Nancy, Marjorie del Socorro Altamirano González, and Teresa de Jesús Alemán Rivera. 2008. “Group B Streptococcus in Pregnant Women Attending the Health Centre May Day. April-August 2007”. UNIVERSITAS (LEÓN): SCIENTIFIC JOURNAL OF THE UNAN-LEÓN 2 (2):29-32. https://doi.org/10.5377/universitas.v2i2.1652.