Sahay, N., M. Bara, U. K. Bhadani, and P. Singh. “Headache After Dural Puncture Subarachnoid Hemorrhage Posing As Meningitis”. International Surgery Journal, vol. 4, no. 9, Aug. 2017, pp. 3156-8, doi:10.18203/2349-2902.isj20173906.