Karim, Lt Col Farhat, Tehreem Yazdani, and Saima Jadoon. “EFFICACY OF CERVICAL CERCLAGE USING MCDONALD’S TECHNIQUE IN PREVENTING PRETERM BIRTHS: Cervical Cerclage”. Pakistan Armed Forces Medical Journal 62, no. 2 (June 30, 2012): 267–70. Accessed May 14, 2024. https://www.pafmj.org/PAFMJ/article/view/1727.