A Comparison of Incidence of Post Dural Puncture Headache Using 25G Quincke and 25G Whitacre Needle in Obstetric Patients Undergoing Caesarean Section under Spinal Anesthesia. Medphoenix [Internet]. 2021 Jul. 19 [cited 2026 Jul. 5];6(1):28-31. Available from: https://www.nepjol.info/index.php/medphoenix/article/view/36732