Khan, Abid, Shizan Hamid Feroz, Sana Iqbal, Muhsan Sultan, Sajid Munir, and Waqas Ahmed. 2022. “Comparison of Sphenopalatine Block and Intravenous Paracetamol for the Treatment of Post-Dural Puncture Headache”. Pakistan Armed Forces Medical Journal 72 (3):1136-39. https://doi.org/10.51253/pafmj.v72i3.7528.