Sapkota, S., K. Niraula, S. Lohani, S. Shrestha, B. Shrestha, and A. Shaheen. “Comparative Study of Surgical Outcome of Chronic Subdural Hematoma Treated With and Without External Drainage”. Eastern Green Neurosurgery, vol. 2, no. 1, Jan. 2020, pp. 30-34, doi:10.3126/egn.v2i1.27459.