Uddin, M. R. ., M. H. . Munir, A. N. . Choudhury, M. S. . Islam, A. F. . Haque, and M. . Hye. “Post Dural Puncture Headache Following Subarachnoid Block for Caesarean Section: A Comparision Between 25G and 27G Quincke Spinal Needle”. Journal of the Bangladesh Society of Anaesthesiologists, vol. 25, no. 2, Aug. 2014, pp. 54-58, doi:10.3329/jbsa.v25i2.61002.