Khan, Habib Ullah, Khaula Atif, and Gholamheidar Teimori Boghsani. 2019. “Single Versus Double Burr-Hole Drainage for Chronic subdural hematoma: A Study of Relevant Prognostic factors conducted in Pakistan: Single Vs. Double Burrhole for CSDH”. Pakistan Journal of Medical Sciences 35 (4). https://doi.org/10.12669/pjms.35.4.543.