Abdelrazik, R., H. Toulan, and S. Ayoub. “Sphenopalatine Ganglion Block Vs Greater Occipital Nerve Block in the Management of Post Dural Puncture Headache in Obstetric Patients: A Randomized Clinical Trial”. Anaesthesia, Pain & Intensive Care, Vol. 28, no. 1, Feb. 2024, pp. 68-73, doi:10.35975/apic.v28i1.2143.