Hassan, K. S., El Tantawi, M. M., AlAgl, A. S., Alnimr, A. M., & Haseeb, Y. A. (2016). Sensitivity and specificity of subgingival bacteria in predicting preterm birth- a pilot cohort study. International Journal of Health Sciences, 10(4). Retrieved from https://pub.qu.edu.sa/index.php/journal/article/view/1366