Dhali, Badal, Shritanu Bhattacharya, Rajendra Prasad Ganguly, Shrirupa Bandyopadhyay, Mousumi Mondal, and Mousumi Dutta. 2016. “A Randomized Trial of Intravenous Labetalol & Oral Nifedipine in Severe Pregnancy Induced Hypertension”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 1 (1):42-46. https://www.ijrcog.org/index.php/ijrcog/article/view/158.