Fachini, Ana Maria, Paulo Giraldo, Cláudia Jacyntho, Ana Katherine Gonçalvez, and Iara Linhares. 2005. “Bacterial Vaginosis and Preterm Labor: Na Association Not Very Well Understood”. Brazilian Journal of Sexually Transmitted Diseases 17 (2). Niterói:149-452. https://www.bjstd.org/revista/article/view/574.