Yasmin, Sumaira, Samina Sabir, and Farnaz Zahoor. “TO COMPARE THE EFFECTIVENESS OF NIFEDIPINE AND GLYCERYL TRINITRATE PATCH IN PREVENTION OF PRETERM LABOUR”. Journal of Postgraduate Medical Institute 30, no. 1 (February 6, 2016). Accessed April 25, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/1886.