Lallar, M., A. ul Haq, and R. Nandal. “Asymptomatic Bacteriuria: Predisposing Factors and Correlation With Preterm Labor in Low Resource Settings”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 3, no. 2, Jan. 2017, pp. 403-8, https://www.ijrcog.org/index.php/ijrcog/article/view/940.