K. B., G., P. S. V., S. G., . Uday, and B. P. R. K. “Comparative Efficacious Study Between Preoperative Pregabalin and Gabapentin on Postoperative Pain in Abdominal Hysterectomy: An Institutional Experience”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 12, Nov. 2017, pp. 5373-8, doi:10.18203/2320-1770.ijrcog20175245.