Singh, Alok, Vivek Sharma, and B. L. Pandey. 2017. “Comparative Effectiveness Study of Vinpocetine Vs. Nimodipine on Functional Recovery in Patients of Head Injury”. International Journal of Basic & Clinical Pharmacology 2 (1):18-25. https://www.ijbcp.com/index.php/ijbcp/article/view/1203.