BN S, Pujar TV. Comparison of safety, efficacy and perinatal outcome of isoxsuprine and nifedipine in women with preterm labour. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Jan. 31 [cited 2025 Dec. 4];6(2):400-3. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/996