Prasoon Saurabh, Rishi Kant Singh, and Rohit Kumar. 2022. “A Comparative Study Of Twist Drill Craniotomy And Burr Hole Craniotomy In Patients Of Chronic Sub-Dural Hematoma Attending A Tertiary Care Centre Of Bihar”. International Journal of Health and Clinical Research 5 (2):525-27. https://ijhcr.com/index.php/ijhcr/article/view/4581.