Patel, Alpesh R., Sneha R. Arora, and Jalpa K. Bhatt. “Comparison of Oral Nifedipine and Oral Labetalol As a Single Drug Therapy for Control of Blood Pressure in Preeclampsia”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 9, no. 6 (May 27, 2020): 2328–2332. Accessed December 4, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/8406.