Shaimaa Abdulamer Nasir, Balsam Kahtan Mohammed, and Sameera G J Alabsi. “Lactobacillus Species Detected by 16S RRNA Gene Sequence Isolated from the Vaginae of Pregnant Women and Its Relation to Preterm Labor”. International Journal of Research in Pharmaceutical Sciences, vol. 9, no. 1, Mar. 2018, pp. 160-4, https://ijrps.com/home/article/view/4186.