Afridi, N., A. Fareed, and A. Fatima. “Role of Prednisolone in Management of Post-Dural Puncture Headache After Spinal Anesthesia in Obstetric Patients”. Anaesthesia, Pain & Intensive Care, Vol. 23, no. 2, Aug. 2019, pp. 168-71, doi:10.35975/apic.v23i2.1062.