D., Rita, and V. Haripriya. “Comparative Study of Efficacy of Nifedipine, Nitroglycerin Dermal Patches and Isoxsuprine As Tocolytic Agents in Suppression of Preterm Labour 1-Year Study at Navodaya Medical College Hospital and Research Centre Raichur”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 7 (June 28, 2021): 2806–2810. Accessed December 4, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/10318.