Firdous T, Siddiqui MA, Siddiqui SM. Frequency of post dural puncture headache in patients undergoing elective cesarean section under spinal anesthesia with median versus paramedian approach. apic [Internet]. 24Jan.2019 [cited 3Jul.2024];:165-70. Available from: https://apicareonline.com/index.php/APIC/article/view/253