Jain P, Suman S, Mishra MG. Comparative study of nifepidine and isoxsuprine in suppression of preterm labour. Int J Reprod Contracept Obstet Gynecol [Internet]. 2016 Dec. 14 [cited 2025 Sep. 25];5(11):3754-7. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/325