Maharjan D. Occurrence of Headache with and without Pillow Cushion in Supine Position after Spinal Anesthesia. Nepal J Obstet Gynaecol [Internet]. 2018 Jan. 15 [cited 2024 Nov. 21];12(1):55-8. Available from: https://nepjol.info/index.php/NJOG/article/view/18983